Biology Quiz Questions with Answers

In this chapter we have 1000s of Biology Quiz Questions with Answers. These are suitable for Standard 5 to Standard 12 students. Some biology questions are relevant for higher grade students as well.

Q. Which one of the following elements is essential for the formation of chlorophyll in green plants?

1) Calcium

2) Iron

3) Magnesium

4) Potassium

ANS: 3

Q. Which one of the following crops is not cultivated in Karewas, the lacustrine deposits of sand, clay, loam, silt and boulders?

1) Saffrom

2) Almond

3) Walnut

4) Ling nut

ANS: 4

Q. Which of the following classes of animals has/have three chambered heart?

1) Pisces and Amphibia

2) Amphibia and Reptilia

3) Reptilia only

4) Amphibia only

ANS: 2

Q. Which of the following is the largest external organ of the human body?

1) Head

2) Skin

3) Tongue

4) Pancreas

ANS: 2

Q. Which of the following parasites cause Malaria?

1) Trypanosoma

2) Plasmodium

3) Entamoeba gingivelis

4) None of the above

ANS: 2

Q. Which one of the following statements regarding histone proteins is correct?

1) Histones are proteins that are present in mitochondrial membrane

2) Histones are proteins that are present in nucleus in association with DNA

3) Histones are proteins associated with lipids in the cytosol

4) Histones are proteins associated with carbohydrates in the cytosol

ANS: 2

Q. Any organism with more than two genomes is called as –

1) Monoploids

2) Polyploid

3) Diploid

4) Haploid

ANS: 2

Q. Select the significance of meiosis –

1) It helps in growth of multicellular organisms

2) It helps in cell repair

3) It maintains the same number of chromosomes in daughter cells as of parent cell

4) It creates variation

ANS: 4

Biology Quiz Questions with Answers

Q. Initiation of milk secretion is called –

1) Lactogenesis

2) Galactogenesis

3) Galactopiosis

4) None of these

ANS: 1

Q. Accumulation of which one of the following in the muscles of sprinters leads to cramp?

1) Lactic acid

2) Ethanol

3) Pyruvic acid

4) Glucose

ANS: 1

Q. The antibiotic penicillin is extracted from –

1) Bacteria

2) Virus

3) Plant

4) Animal

ANS: 3

Q. The following plant is able to absorb most of the pollutant in water –

1) Mango

2) Coconut

3) Hydrilla

4) Eichhornia

ANS: 4

Q. What is triglyceride?

1) Protein

2) Carbohydrate

3) Fat

4) Mineral

ANS: 3

Q. Which ecosystem has the maximum biomass ?

1) Lake

2) Pond

3) Forest

4) Grassland

ANS: 3

Q. At what time after child birth is the DPT vaccine administered to a newborn ?

1) 6 weeks

2) 6 months

3) 6 days

4) 6 hrs.

ANS: 1

Biology Quiz Questions with Answers

Q. Which of the following organs do not produce digestive juices ?

1) Stomach

2) Liver

3) Pancreas

4) Urinary bladder

ANS: 4

Q. Which blood group is known as Universal Donor ?

1) ‘A’

2) ‘B’

3) ‘AB’

4) ‘O’

ANS: 4

Q. Which hormone is produced in insufficient amounts in Type-1 diabetes ?

1) Glucagon

2) Insulin

3) Somatostatin

4) Both (A) and (B)

ANS: 2

Biology Quiz Questions with Answers

Q. DNA fragments separated on an Agarose gel can be visualised after staining with –

1) Aniline blue

2) Ethidium Bromide

3) Acetocarmine

4) Bromophenol blue

ANS: 2

Q. A genetic disorder in which blood does not clot normally is –

1) Cystic fibrosis

2) Thalassemia

3) Sickle cell anemia

4) Hemophilia

ANS: 4

Q. Based upon the type of excretory substance, the human species is –

1) Uricotelic

2) Ureotelic

3) Ammonotelic

4) Ureotelic and Uricotelic, both

ANS: 2

Q. Which one of the following is a true fish as per the biological system of classification?

1) Silverfish

2) Jellyfish

3) Cuttlefish

4) Flying fish

ANS: 4

Q. In which one of the following types of connective tissues in animals does fat get stored ?

1) Adipocyte

2) Chondrocyte

3) Osteocyle

4) Reticulocyte

ANS: 1

Q. Lysosome is formed from which of the following cell organelles?

1) Nucleus

2) Endoplasmic reticulum

3) Golgi bodies

4) Ribosomes

ANS: 3

Q. Carbohydrates is a nutrient stored in both plants and animals in the form of :

1) Cellulose and galactose respectively

2) Starch and Glycogen respectively

3) Starch and Glucose respectively

4) Cellulose and Glycogen respectively

ANS: 2

Q. The main air pollutant(s) in metropolitan cities is/ are –

1) O3

2) CO and SO2

3) CO2 and NO2

4) None of the above

ANS: 2

Q. Which of the following is a medicinal crop?

1) Sugarcane

2) Aloe vera

3) Cotton

4) Mahua

ANS: 2

Q. Which of the following diseases is also known as Elephantiasis ?

1) Lymphatic filariasis

2) Renal Failure

3) Giardia intestinalis

4) None

ANS: 1

Biology Quiz Questions with Answers

Q. Which of the following vaccines is administered through intradermal route –

1) Polio vaccine

2) BCG vaccine

3) Ante cholera vaccine

4) Measles vaccine

ANS: 2

Q. Which vitamin is also known as ‘calciferol’ ?

1) Vitamin ‘A’

2) Vitamin ‘B’

3) Vitamin ‘C’

4) Vitamin ‘D’

ANS: 4

Q. Which of the following is the largest part of human brain ?

1) Cerebrum

2) Cerebellum

3) Brain stem

4) Corpus callosum

ANS: 1

Q. In human eye, the image of an object is formed at –

1) Cornea

2) Iris

3) Retina

4) Pupil

ANS: 3

Q. Which of the following is non-biodegradable?

1) Animal bones

2) Nylon

3) Tea leaves

4) Wool

ANS: 2

Q. Animal dung is ……… waste.

1) Biodegradable

2) Non-biodegradable

3) Hazardous

4) Toxic

ANS: 1

Q. A natural phenomenon that becomes harmful due to pollution is –

1) global warming

2) ecological balance

3) greenhouse effect

4) desertification

ANS: 3

Q. Medicine of quinine is produced by –

1) eucalyptus plant

2) aconite plant

3) cinchona plant

4) money plant

ANS: 3

Q. Chief source of energy in environment is –

1) fire

2) moon

3) sun

4) stars

ANS: 3

Q. The factors which are most important in determining the impact of anthropogenic activities on environment are –

1) Population, affluence per person, land available per person

2) Population, affluence per person and the technology used for exploiting resources

3) Atmospheric conditions, population and forest cover

Biology Quiz Questions with Answers

Q. Name one non-biodegrabable waste which may pollute the earth to dangerous levels of toxicity, if not handled properly.

1) DDT

2) CFC

3) Radioactive substances

4) PAN

ANS: 3

Q. In a lake polluted with pesticides, which one of the following will contain the maximum amount of pesticides?

1) Small fish

2) Microscopic animals

3) Big fish

4) Water birds

ANS: 4

Q. Name the substance whose accumulation in pelicans of Lake Michigan led to the formation of thin shells of their eggs –

1) CFC

2) PAN

3) DDT

4) PAC

ANS: 3

Q. When trees are cut amount of oxygen ?

1) decreases

2) increases

3) both and (A) and (B)

4) remains same

ANS: 1

Q. Process through which plants reproduce –

1) eating

2) evaporation

3) pollination

4) condensation

ANS: 3

Q. The highest protein content is found in the grain of –

1) black gram

2) pigeon pea

3) field pea

4) soya bean

ANS: 4

Q. Ecology is the study of relationship between –

1) organism and environment

2) man and forest

3) soil and water

4) husband and wife

ANS: 1

Q. Which one of the following groups of compounds is called ‘accessory dietary factor’?

1) Fats

2) Hormones

3) Proteins

4) Vitamins

ANS: 4

Q. An essential constituent of diet is –

1) starch

2) glucose

3) carbohydrate

4) cellulose

ANS: 3

Q. Which one of the following proteins is present in human hair and nails?

1) Oxytocin

2) Keratin

3) Vasopressin

4) Trypsin

ANS: 2

Q. Cow milk is yellowish white in colour due to the presence of –

1) casein

2) lactose

3) carotene together with casein

4) butyric acid together with lactose

ANS: 3

Q. Which of the following acids is present in Red Ants?

1) Oxalic acid

2) Tannic acid

3) Malic acid

4) Formic acid

ANS: 4

Q. Asexual reproduction differes from sexual reproduction in that in asexual reproduction, ___.

1) the gametes are produced in reproduction

2) the offspring shows variations

3) the nuclei of gametes fuse

4) the new organisms are genetically identical to the parent

ANS: 4

Q. Fill in the blank with the most appropriate option.

Plants that do not have a differentiated plant body belong to the group ____.

1) Pteridophyta

2) Phanerogams

3) Bryophyta

4) Thallophyta

ANS: 4

Biology Quiz Questions with Answers

Q. Which of the following is essential for the synthesis of thyroxin?

1) Potassium

2) Sodium

3) Calcium

4) Iodine

ANS: 4

Q. The girth of the stem of root in plants increases due to :

1) Lateral meristem

2) Intercalary meristem

3) Extra meristem

4) Apical meristem

ANS: 1

Q. Which one of the following statements regarding insulin hormone is correct?

1) Insulin is a protein hormone which is not produced in human body

2) Insulin is a steroid hormone which is prodiced in human body

3) insulin is a cholesteroldriven hormone given to human

4) Insulin is a protein hormone which as produced in human body

ANS: 4

Q. Which one of the following statements is correct?

1) In photosynthesis by green plants, carbon dioxide is used for making carbohydrate

2) During photosynthesis, plants use oxygen for making carbohydrate

3) The carbohydrate generated by plants comes from soil

4) The carbohydrate generated by plants comes from urea

ANS: 1

Q. Phytohormones are :

1) regulators synthesised by plants influencing physiological processes

2) substances controlling diseases

3) substances used for photo-synthesis

4) chemicals used for peeling

ANS: 3

Q. Consider the following statements :

Assertion (A) : During sleep, bright light is undesirable.

Reason : In bright light, production of melatonin in the body is considerably increased.

Select your answer using the codes given below –

Codes:

1) Both (A) and (R) are correct, and (R) is the correct explanation of (A)

2) Both (A) and (R) are correct, but (R) is not the correct explanation of (A)

3) (A) is true, but (R) is false

4) (A) is false, but (R) is true

ANS: 1

Q. Which of the following diseases cannot be cured by antibiotics?

1) Tuberculosis

2) Tetanus

3) Measles

4) Cholera

ANS: 4

Q. Which one of the following statements about proteins in mammalian cells is correct?

1) Proteins in mammalian cells are synthesized in cell membrane

2) Proteins in mammalian cells are not synthesized in cell membrane but directly absorbed from food

3) Proteins in mammalian cells are synthesized in rough endoplasmic reticulum

4) Proteins in mammalian cells are synthesized in Golgi apparatus

ANS: 3

Q. Which one of the following statements about transport mechanism in plants is correct?

1) Diffusion of ions and small molecules across cell membrane requires energy.

2) Active transport of ions and small molecules across cell membrane against concentration gradient requires energy.

3) Cells conserve energy and no energy is required for transport of ions and small molecules against concentration gradient.

4) Cells do not transport ions across their membrane as these are charged molecules.

ANS: 2

Q. Which one of the following statements about blood elements is correct?

1) Red blood cells’ number is same as that of white blood cells and platelets

2) The number of white blood cells is more than red blood cells

3) The number of red blood cells is the highest

4) The number of red blood cells is lower than platelets

ANS: 3

Q. Which one of the following statements regarding digestion is correct?

1) Fat present in the food is digested by trypsin and chymotrypsin

2) Starch of food is digested by lipases

3) Fat of food is digested by lipases

4) Nucleic acid is digested by amylases

ANS: 3

Q. Which of the following is a Saprotroph?

1) Man

2) Pigeon

3) Mushroom

4) Algae

ANS: 3

Q. Nodes of Ranvier are microscopic gaps found within :

1) myelinated axons

2) chondroblasts

3) osteoblasts

4) gland cells

ANS: 1

Q. Which of the following is necessary to maintain the number of individuals of species and to prevent their extinction?

1) Digestion

2) Circulation

3) Respiration

4) Reproduction

ANS: 4

Q. Identify an example of a connective tissue in humans.

1) Cell

2) Muscles

3) Bone

4) Fibres

ANS: 3

Biology Quiz Questions with Answers

Q. Based upon the type of excretory substance, the human species is –

1) Uricotelic

2) Ureotelic

3) Ammonotelic

4) Ureotelic and Uricotelic, both

ANS: 2

Q. DNA fragments separated on an Agarose gel can be visualised after staining with –

1) Aniline blue

2) Ethidium Bromide

3) Acetocarmine

4) Bromophenol blue

ANS: 2

Q. Which hormone is produced in insufficient amounts in Type-1 diabetes ?

1) Glucan

2) Insulin

3) Somatostatin

4) Both (A) and (B)

ANS: 2

Q. Which blood group is known as Universal Donor ?

1) ‘A’

2) ‘B’

3) ‘AB’

4) ‘O’

ANS: 4

Q. Which of the following serves as a nutritive tissue for the growing embryo?

1) Ovary

2) Zygote

3) Ovule

4) Endosperm

ANS: 4

Q. If …….. is involved, even greater diversity will be generated.

1) asexual reproduction

2) vegetative propagation

3) binary fission

4) sexual reproduction

ANS: 4

Q. The pH value of milk is :

1) 2.4

2) 3.8

3) 6.6

4) 8.8

ANS: 3

Q. Which of the following can produce a virtual image which is always smaller than the object ?

1) a plane mirror

2) a convex lens

3) a concave lens

4) a concave mirror

ANS: 3

Q. Which of the following is the largest part of human brain ?

1) Cerebrum

2) Cerebellum

3) Brain stem

4) Corpus callosum

ANS: 1

Q. Which of the following organs do not produce digestive juices ?

1) Stomach

2) Liver

3) Pancreas

4) Urinary bladder

ANS: 4

Q. At what time after child birth is the DPT vaccine administered to a newborn ?

1) 6 weeks

2) 6 months

3) 6 days

4) 6 hrs.

ANS: 1

Q. Which of the following diseases are caused by the consumption of water contaminated by mercury and nitrate ?

1) Minamata disease and Osteoporosis

2) Osteoporosis and Blue Baby Syndrome

3) Minamata disease and Blue Baby Syndrome

4) Osteoporosis and Minamata disease

ANS: 3

Q. What is the name of the hormone produced by thymus gland ?

1) Thyroxine

2) Auxins

3) Cytokinis

4) Thymosin

ANS: 4

Q. Photosynthesis takes place in the presence of chlorophyll and –

1) water

2) nutrients

3) carbon-dioxide

4) sunlight

ANS: 4

Biology Quiz Questions with Answers

Q. Which blood group is universal acceptor ?

1) O+

2) O-

3) AB-

4) AB+

ANS: 4

Q. The ecological niche of an organism relates to –

1) specific habitat of the organism

2) symbiotic relationship with other organisms

3) diverse occurrence of a species under different conditions

4) its interaction with all other organisms

ANS: 1

Q. Free swimming macroscopic animals in an aquatic environment are referred to as –

1) Plankton

2) Periphyton

3) Benthos

4) Nekton

ANS: 4

Q. Which one of the following artificial sweeteners is modified sugar ?

1) Aspartame

2) Saccharin

3) Sucralose

4) Alitame

ANS: 3

Q. Which one of the following polymers is made of protein ?

1) Rubber

2) Cotton

3) Wool

4) Jute

ANS: 3

Q. Which instrument is used to measure humidity ?

1) Hydrometer

2) Hygrometer

3) Pyrometer

4) Lactometer

ANS: 2

Q. AIDS is caused by –

1) water

2) bacteria

3) virus

4) fungus

ANS: 3

Q. The powerhouse of cell is –

1) cell wall

2) mitochondrion

3) ribosome

4) nucleus

ANS: 2

Q. Human body contains –

1) about 70% water

2) 20%-30% water

3) 10%-20% water

4) 30%-40% water

ANS: 1

Q. Body temperature is regulated by –

1) thalamus

2) hypothalamus

3) cerebellum

4) medulla

ANS: 2

Q. Electroencephalogram (EEG) is used in monitoring –

1) heart

2) liver

3) pancreas

4) brain

ANS: 4

Q. How is the National Green Tribunal (NGT) different from the Central Pollution Control Board (CPCB) ?

1. The NGT has been established by an Act whereas the CPCB has been created by an executive order of the Government.

2. The NGT provides environmental justice and helps reduce the burden of litigation in the higher courts whereas the CPCB promotes cleanliness of streams and wells, and aims to aims to improve the quality of air in the country.

Which of the statements given above is/ are correct ?

1) 1 only

2) 2 only

3) Both 1 and 2

4) Neither 1 nor 3

ANS: 2

Q. Which of the following medicines can possibly be used as analgesic without causing addiction and mood modification ?

1) Diazepam

2) Morphine

3) Paracetamol

4) Tetrahydrocannabinol

ANS: 3

Q. Which of the following can be used as artificial sweetner(s) ?

I. Aspartame II. Alitame

III. Sucralose IV. Saccharin

Correct code is –

1) Only I

2) I and II only

3) I, II and III only

4) I, II, III and IV

ANS: 4

Q. Which of the following statements is correct about Nipah Virus ?

I. It is a rare, brain-damaging virus.

II. The deadly virus is contagious and currently has no vaccine for humans or animals.

III. The natural host of the virus is a fruit bat of the Ptero-podidae family.

IV. It claimed more than 10 lives in May 2018 in Kozhikode and Malappuram districts in North Kerala.

Correct code is –

1) I and II only are correct

2) Only I and III are correct

3) Only II and IV are correct

4) I, II, III and IV are correct

ANS: 4

Biology Quiz Questions with Answers

Q. Prolonged reuse of cooking oil for preparing food, particularly in deep frying is a potential health hazard. It can lead to many diseases like –

I. Increases the level of cholesterol II. Cancer

III. Creates peroxides acids. IV. Parkinson’s disease

Correct code is –

1) Only II

2) Only II and IV

3) Only I, II and III

4) I, II, III and IV

ANS: 4

Q. Which country has decided in May 2018 the culling of 1,26,000 cows in the largest mass animal slaughter in its history to try to eradicate the Mycoplasma bovis disease ?

1) Denmark

2) Australia

3) New Zealand

4) Brazil

ANS: 3

Q. Complete vaccination is covered against __________ Vaccine preventable diseases under intensified mission Indradhanush.

I. Tuberculosis, Diphtheria, Pertussis, Tetanus

II. Polio, Hepatitis B, Pneumonia and Meningitis due to Haemophilus Influenzae type b (Hib)

III. Measles, Rubella, Japanese Encephalitis (JE) and Rotavirus

Correct code is –

1) Only I

2) Only II

3) Only I and II

4) I, II, III and IV

ANS: 4

Q. Which of the following diseases is caused by a bacteria ?

1) Influenza

2) Japanese Encephalitis

3) Tuberculosis

4) Swine Flue

ANS: 3

Q. Rinderpest is a disease of –

1) Humans

2) Birds

3) Ruminant animals

4) Carnivores

ANS: 3

Q. World Environment Day was organized on June 5, 2018 The theme for the World Environment Day 2018 was –

1) Beat Plastic Pollution

2) Plastic is Eating the environment: Save it

3) Clean Environment: Healthy Life

4) Organic Food; Better Health

ANS: 1

Q. Which part of the body is affected in meningitis ?

1) Lungs

2) Brain

3) Heart

4) Kidney

ANS: 2

Q. HbA1c blood test is done to measure –

1) Average blood sugar levels over a period of months

2) Average hemoglobin level over a period of weeks

3) Average intake of oxygen

4) Average white blood cells per ml of blood

ANS: 1

Q. Which of the following is not a water borne disease ?

1) Cholera

2) Gastroenteritis

3) Tuberculosis

4) Typhoid

ANS: 3

Q. Which of the following is/ are used to disinfect and treat the water for human use ?

I. Potassium Permanganate

II. Bleaching powder

III. Chlorine

Correct code is –

1) Only II

2) I and II only

3) Only III

4) I, II and III

ANS: 4

Q. Which one of the following compounds is not a vitamin ?

1) Niacin

2) Thyroxine

3) Riboflavin

4) Pyridoxine

ANS: 2

Q. Which one of the following units is used for measurement of noise pollution ?

1) Nanometer

2) Decibel

3) Hertz

4) None of the above

ANS: 2

Q. The (Green) Grass appears green to us because –

1) It reflects green colour light to our eyes

2) It absorbs green colour light

3) It reflects all other colour lights except that of green colour

4) None of the above

ANS: 1

Q. The stones present in the human gall bladder primarily affect the digestion of –

1) Fats

2) Proteins

3) Carbohydrates

4) Nucleic acids

ANS: 1

Q. Consider the statements –

Assertion (A) Vitamin B12 remains stored in liver for about 3-5 years.

Reason (R) : Vitamin B12 is water-soluble.

Select the correct answer using the codes given below –

Codes:

1) Both (A) and (R) are true and (R) is the correct explanation of (A)

2) Both (A) and (R) are true but (R) is not the correct explanation of (A)

3) (A) is true but (R) is false

4) (A) is false but (R) is true

ANS: 2

Biology Quiz Questions with Answers

Q. Which part of human eye is affected by cataract ?

1) Iris

2) Retina

3) Cornea

4) None of the above

ANS: 4

Q. A hot body cools from 90°C to 75°C in 25 seconds. The same body in further cooling from 75°C to 60°C will take how much time ?

1) 25 seconds

2) Less than 25 seconds

3) More than 25 seconds

4) Nothing can be said

ANS: 3

Q. The basis of DNA finger printing is –

1) DNA replication

2) The double helix

3) DNA Polymorphism

4) Errors in base sequence

ANS: 3

Q. Which of the following is not an example of in-situ conservation strategy ?

1) Biosphere reserve

2) Botenical garden

3) National Park

4) Sacred groves

ANS: 2

Q. Double-helical structure of DNA was given by whom ?

1) Jacob and Monod

2) Watson and Crick

3) H.G. Khorana

4) None of the above

ANS: 2

Q. Which one of the following frequency ranges is sensitive to human ears ?

1) 0 – 200 Hz

2) 20 – 20,000 Hz

3) 200 – 20,000 Hz only

4) 2,000 – 20,000 Hz only

ANS: 2

Q. Which of the following statements about specific heat of a body is/ are correct ?

1. It depends upon mass and shape of the body.

2. It is independent of mass and shape of the body.

3. It depends only upon the temperature of the body

Select the correct answer using the code given below :

1) 1 only

2) 2 and 3

3) 1 and 3

4) 2 only

ANS: 4

Q. Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob ?

1) Applied force

2) Frictional force

3) Restoring force

4) Virtual force

ANS: 3

Q. Which one of the following statements about the refractive index of a material medium with respect to air is correct ?

1) It can be either positive or negative

2) It can have zero value

3) It is unity for all materials

4) It is always greater than one

ANS: 4

Q. Which one of the following is the correct sequence of levels of hierarchy of classification of organisms from higher to lower ?

1) Phylum – Class – Order – Family – Genus

2) Phylum – Class – Family – Order – Genus

3) Family – Order – Class – Species – Genus

4) Class – Family – Order – Species – Genus

ANS: 1

Q. Which one of the following statements about meristematic tissue in plants is correct ?

1) These are dead tissues and form wood

2) They provide flexibility to plant due to their thickened walls

3) These are present in the bark of a tree only

4) Growth occurs in plants due to division of cells of these tissues

ANS: 4

Q. Which one of the following statements about the mass of a body is correct ?

1) It changes from one place to another

2) It is same everywhere

3) It depends on its shape

4) It does not depend on its temperature

ANS: 2

Q. Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?

1) Lithium

2) Sodium

3) Rubidium

4) Caesium

ANS: 2

Q. Which one of the following group of organisms forms a food chain ?

1) Grass, human and fish

2) Grass, goat and human

3) Tree, tree cutter and tiger

4) Goat, cow and human

ANS: 2

Q. Which one of the following types of tissues will have contractile proteins ?

1) Nervous tissue

2) Muscle tissue

3) Bone tissue

4) Blood tissue

ANS: 2

Q. If by an unknown accident the acid secreting cells of the stomach wall of an individual are damaged, digestion of which one of the following biomolecule will be affected to a greater extent ?

1) Protein only

2) Lipid

3) Carbohydrate only

4) Protein and Carbohydrate

ANS: 1

Q. Who among the following first discovered cell ?

1) Robert Brown

2) Robert Hooke

3) Leeuwenhoek

4) Rudolf Virchow

ANS: 2

Q. In human system, insulin controls the metabolism of –

1) fats

2) carbohydrates

3) proteins

4) nucleic acids

ANS: 2

Biology Quiz Questions with Answers

Q. Which of the following is mostly carbohydrate?

1) Wheat

2) Barley

3) Rice

4) Maize

ANS: 3

Q. Medicine of quinine is produced by –

1) eucalyptus plant

2) aconite plant

3) cinchona plant

4) money plant

ANS: 3

Q. When trees are cut amount of oxygen?

1) decreases

2) increases

3) both (1) and (2)

4) remains same

ANS: 1

Q. Process through which plants reproduce –

1) eating

2) evaporation

3) pollination

4) condensation

ANS: 3

Q. A natural phenomenon that becomes harmful due to pollution is –

1) global warming

2) ecological balance

3) greenhouse effect

4) desertification

ANS: 3

Q. The pollutant responsible for ozone holes is –

1) CO2

2) SO2

3) CO

4) CFC

ANS: 4

Q. One of the best solutions to get rid of non-biodegradable wastes is –

1) burning

2) dumping

3) burying

4) recycling

ANS: 4

Q. Animal dung is ————– waste.

1) Biodegradable

2) Non-biodegradable

3) Hazardous

4) Toxic

ANS: 1

Q. Which of the following is biodegradable?

1) Iron nails

2) Plastic mugs

3) Leather belts

4) Silver foil

ANS: 3

Q. Which of the following is non-biodegradable?

1) Animal bones

2) Nylon

3) Tea leaves

4) Wool

ANS: 2

Q. Name one waste which may pollute the earth to dangerous levels of toxicity, if not handled properly.

1) DDT

2) CFC

3) Radioactive substances

4) PAN

ANS: 3

Q. In a lake polluted with pesticides, which one of the following will contain the maximum amount of pesticides?

1) Small fish

2) Microscopic animals

3) Big fish

4) Water birds

ANS: 4

Q. Xenobiotics which are inherently resistant to microbial attack are called as –

1) Biodegradable

2) Persistent

3) Recalcitrant

4) All of the given options

ANS: 3

Q. Which one of the following is the correct sequence of ecosystem in the order of decreasing productivity?

1) Mangroves, oceans, grassland, lakes

2) Oceans, lakes, grassland, mangroves

3) Mangroves, grasslands, lakes, oceans

4) Oceans, mangroves, lakes, grassland

ANS: 3

Q. Which one of the following polymers is not biodegradable ?

1) Cellulose

2) Starch

3) Protein

4) PVC

ANS: 4

Q. Sea weeds are the main and important source of the following element –

1) Iodine

2) Chlorine

3) Bromine

4) None of the above

ANS: 1

Q. Which one of the following pairs is not correctly matched ?

1) Vitamin D – Rickets

2) Vitamin C – Bleeding gums

3) Vitamin A – Rheumatism

4) Vitamin B – Beriberi

ANS: 3

Q. Which one of the following pairs is not correctly matched ?

1) Chloromycetin – antityphoid

2) Crystal violet – antiseptic

3) Quinine – antimalarial

4) Aspirin – anaesthetic

ANS: 4

Q. The silk produced by spiders is called –

1) Tussar silk

2) Munga silk

3) Gossamer silk

4) Ahinsa silk

ANS: 3

Q. The total amount of blood present in a normal human (70 kg) adult is about –

1) 6000 ml

2) 5000 ml

3) 4000 ml

4) 3000 ml

ANS: 2

Q. Which one of the following enzymes converts proteins into amino acids?

1) Pepsin

2) Lactase

3) Urease

4) Zymase

ANS: 1

Q. Which one of the following is a female sex-hormone ?

1) Androsterone

2) Testosterone

3) Estrone

4) Thyroxine

ANS: 3

Q. With reference to bacteriophages, which statement/s is/ are correct?

1. Bacteriophages are virus that infect bacteria.

2. Bacteriophages are used in genetic engineering.

Select the correct answer using the codes given below –

1) 1 only

2) 2 only

3) Both land 2

4) Neither 1 nor 2

ANS: 3

Q. Which one of the following is not required for photosynthesis process ?

1) Sunlight

2) Oxygen

3) Water

4) Carbon dioxide

ANS: 2

Q. When one gene pair hides the effect of the other unit, the phenomenon is referred to as –

1) Mutation

2) Epistasis

3) Dominance

4) None of the options

ANS: 3

Q. Who discovered the first antibiotic?

1) Louis Pastour

2) A. Fleming

3) W. Fleming

4) C. Waksman

ANS: 2

Note: Alexander Fleming had discovered the first antibiotic substance, ‘Benzylpenicillin’.

Q. Animal(s) which is/ are active at night –

1) owl

2) rat

3) cockroach

4) All the above

ANS: 4

Biology Quiz Questions with Answers

Q. An animal that can tolerate the heat of the desert is –

1) Rats

2) Camel

3) Cow

4) Lion

ANS: 2

Q. If waste materials contaminate the source of drinking water which of the following diseases will spread ?

1) Scurvy

2) Typhoid

3) Malaria

4) Anaemia

ANS: 2

Q. Which of the following wastes cannot be decomposed by bacteria to form compost ?

1) Kitchen wastes

2) Plastic and polythene bags

3) dead plants

4) bodies of insects living in the soil

ANS: 2

Q. Which of the following problems is not created by noise pollution ?

1) Diarrhoea

2) Hypertension

3) Deafness

4) Irritation

ANS: 1

Q. Consider the following statements :

1. The common blue green algae, Spirogyra and Ulothrix, are found in both fresh water ponds and oceans.

2. The chameleon can look ahead with one eye, and at the same time look behind with another.

Which of these statements is are correct?

1) Only 1

2) Only 2

3) Both 1 and 2

4) Neither 1 nor 2

ANS: 4

Q. The age of tree, in years, can be ascertained by –

1) its weight

2) its height

3) the number of its annular rings

4) length of its root

ANS: 3

Q. Which component of plants receives stimulus for flowering ?

1) Stems

2) Branches

3) Leaves

4) Roots

ANS: 1

Q. The release of which one of the following into ponds and wells helps in controlling the mosquitoes ?

1) Crab

2) Dogfish

3) Gambusia fish

4) Snail

ANS: 3

Q. The complete conversion of glucose, in the presence of oxygen, into carbon dioxide and water with release of energy is called :

1) aerobic respiration

2) anaerobic respiration

3) glycolysis

4) hydrolysis

ANS: 1

Note: Aerobic respiration requires oxygen (O2) in order to generate ATP.

Q. ‘Kuttu’ flour is obtained from –

1) Tapioca

2) Fagopyrum

3) Plantago

4) Eleusine

ANS: 2

Note: Kuttu flour or Buckwheat (Fagopyrum esculentum) is a plant cultivated for its grain like seeds and also used as a cover crop.

Q. Which of the following is a common adulterant of mustard oil seeds ?

1) Prickly seeds

2) Poppy seeds

3) Cumin seeds

4) None of the above

ANS: 2

Q. Which one of the following respires by gills?

1) Cray-fish

2) Star-fish

3) Silver-fish

4) Jelly-fish

ANS: 1

Q. What is an ecosystem?

1) The unit of man and all living being which interact with each other

2) The unit comprised of man, other living beings and their environment

3) The unit comprised of man, other living beings and their environment

4) That part of the Earth and the atmosphere where living beings are found

ANS: 2

Q. Malaria affects lakhs of Indians every year. Which part of the body is damaged by this disease?

1) Heart

2) Lungs

3) Spleen

4) Liver

ANS: 3

Q. The image formed by an object on the retina of the human eye is –

1) Real and iverted

2) Real and upright

3) Virtual and inverted

4) Virtual and upright

ANS: 1

Q. Dengue is caused by –

1) Virus

2) Deficiency of Vitamin D

3) Deficiency of Fe

4) None of these

ANS: 1

Q. The Great Indian Bustard, an important endangered bird species, Is presently found in which of the following States of India?

1) Haryana

2) Punjab

3) Karnataka

4) Odisha

ANS: 3

Q. Widal test is done for the confirmation of –

1) Cholera

2) Typhoid

3) Pneumonia

4) Titanus

ANS: 2

Biology Quiz Questions with Answers

Q. Light energy is converted into chemical energy during the process of –

1) Transpiration

2) Photosynthesis

3) Respiration

4) All the above

ANS: 2

Note: It is due to the Photosynthesis that light energy is converted into chemical energy.

Q. Largest ecosystem of the world is –

1) Ocean

2) River

3) Forest

4) Grassland

ANS: 1

Note: Ocean is the largest ecosystem of the World.

Q. The image formed on retina of human eye is –

1) Real and Inverted

2) Real and erect

3) Imaginary and inverted

4) Imaginary and erect

ANS: 1

Q. Cobalt is a constituent of vitamin –

1) B1

2) B2

3) B6

4) B12

ANS: 4

Q. Stem is not the source of fibres in which of the following?

1) Jute

2) Cotton

3) Hemp

4) Flax

ANS: 2

Q. Blue vitriol is used as a/ an-

1) Antiseptic

2) Laxative

3) Fungicide

4) Insecticide

ANS: 3

Q. Which of the following is the richest source of Vitamin ‘A’?

1) Apple

2) Guava

3) Bean

4) Carrot

ANS: 4

Q. Which of the following is the richest source of calcium ?

1) Wheat

2) Barley

3) Ragi

4) Jowar

ANS: 3

Q. Hair is composed of a protein called –

1) Globulin

2) Mucin

3) Keratin

4) Casein

ANS: 1

Q. Arthritis is caused by the deposition of which of the following in the joints ?

1) Uric acid

2) Urea

3) Cholesteral

4) Lactic acid

ANS: 1

Note: It is due to the deposit of Uric acid that Arthritis takes place.

Biology Quiz Questions with Answers

Q. In human blood, when the concentration of oxygen goes down, then respiration rate –

1) goes down

2) increases

3) goes down first and then increases

4) does not change

ANS: 2

Q. Of the following, which disease cannot be cured by Antibiotics?

1) Tuberculosis

2) Titan

3) Measles

4) Cholera

ANS: 3

Note: Measels cannot be cured by antibiotic.

Q. The smallest gland of human body is –

1) Adrenal

2) Thyroid

3) Liver

4) Pituitary

ANS: 4

Q. Quinine is produced from which part of Cinchona plant?

1) Bark

2) Flowers

3) Roots

4) Leaves

ANS: 1

Q. Which one of die following living organisms synthesizes its food from inorganic compounds?

1) Ants

2) Virus

3) Rubber Plant

4) Mushroom

ANS: 3

Note: Autotrophic mode of nutrition is a mode of nutrition in which an organism prepares (or synthesizes) its own food from the simple inorganic compounds. All green plants have an autotrophic mode of nutrition these living organisms are autotrophs.

Q. Which one of the following vitamins is also called ascorbic-acid?

1) Vriamin-A

2) Vitamin-B

3) Vitamin-C

4) Vitamin-D

ANS: 3

Q. What is average pH of human blood?

1) 2.3

2) 1.3

3) 10.7

4) 7.4

ANS: 4

Q. The minimum forest cover necessary to maintain ecological balance is –

1) 50% of the total land area

2) 40% of the total land area

3) 33% of the total land area

4) 25% of the total land area

ANS: 3

Q. Photoperiodism affects –

1) Flowering

2) Vegetative growth

3) Fruiting

4) All of these

ANS: 4

Q. Which of the following is FALSE with respect to rain water harvesting ?

1) It helps raising water table

2) It helps meet rising water demand

3) It increases run-off losses

4) It is a device of water conservation

ANS: 3

Biology Quiz Questions with Answers

Q. The maximum fixation of solar energy is done by –

1) Bacteria

2) Fungi

3) Green plants

4) Protozoa

ANS: 3

Q. Animal milk protein is called first class protein because it is –

1) Delicious in taste

2) Cheaper in the market

3) Rich in essential amino acids

4) Easily digestible

ANS: 3

Note: Animal milk protein (3.58%) is rich in essential amino acids and hence, it is called first class protein, which contains casein, Albumin and globulin contents; lactose in milk (4.96 to 5.48%); fat (4.14 to 8.63%) and ash (0.67 to 0.85%) in milk protein of animals.

Q. Outside the nucleus DNA is found in –

1) Mitochondria

2) Ribosome

3) Endoplasmic reticulum

4) Golgi bodies

ANS: 1

Q. Which one of the following animals belongs to mollusca?

1) Hare

2) Hydra

3) Hyla

4) Haliotis

ANS: 4

Q. Allantois of Embryo helps in –

1) Respiration

2) Excretion

3) Protection

4) Digestion

ANS: 2

Q. The example of ‘Lentic Habitat’ in fresh water community is –

1) Ponds and swamps

2) Waterfalls and rivers

3) Ponds and rivers

4) All the above

ANS: 1

Q. Where is the image of an object formed in human eye?

1) Cornea

2) Iris

3) Pupil

4) Retina

ANS: 4

Q. Halophytes grow well in –

1) Acidic soils

2) Cold soils

3) Soils containing calcium

4) Saline soils

ANS: 4

Q. Excess of which of the following in the blood causes the ‘Blue Baby Syndrome’ disease?

1) Iron

2) Lead

3) Methamoglobin

4) Nitrate

ANS: 4

Note: Blue Baby Syndrome – An illness that begins when large amounts of nitrates in water are ingested by an infant and converted to nitrite by the digestive system. The nitrite then reacts with oxyhemoglobin (the oxygen-carrying blood protein) to form metheglobin, which cannot carry oxygen.

Q. Which one of the following organs will not feel any pain on being pricked by a needle?

1) Skin

2) Brain

3) Heart

4) Eye

ANS: 3

Q. Polio is caused by –

1) Bacteria

2) Virus

3) Fungus

4) Protozoa

ANS: 2

Q. Golden rice is a rich source of –

1) Vitamin A

2) Vitamin B

3) Vitamin K

4) Vitamin C

ANS: 1

Q. Which one of the following is a plant hormone ?

1) Insulin

2) Thyroxin

3) Cytokinin

4) Estrogen

ANS: 3

Q. The step that produces largest number of ATP molecules in our system is –

1) Glycolysis

2) Krebs cycle

3) Terminal respiratory chain

4) Hydrolysis

ANS: 1

Q. Liver fluke lives in the bile duct of –

1) horse

2) cow

3) man

4) sheep

ANS: 4

Q. The class of food having highest caloric value per unit weight is –

1) vitamin

2) fat

3) carbohydrate

4) protein

ANS: 2

Q. Which of the following is not biodegradable ?

1) Domestic sewage

2) Lab detergents

3) Plant leaves

4) Soap

ANS: 4

Q. Which of the following foods provides the nutrient for the growth of new tissues in the human body ?

1) Fruits

2) Vegetables

3) Cheese

4) Sweets

ANS: 4

Q. Of the following diseases, which one is caused by insect bite?

1) Dengue

2) Scurvy

3) Pneumonia

4) Asthma

ANS: 1

Q. Which organ of the human body does the Alzheimer’s disease affect ?

1) Ear

2) Brain

3) Eye

4) Stomach

ANS: 2

Note: A progressive disease that destroys memory and other important mental functions.

Q. Which of the following fights infection in the body?

1) RBC

2) WBC

3) Blood Plasma

4) Heamoglobin

ANS: 2

Q. Clove is obtained from –

1) Root

2) Stem

3) Fruit

4) Flower bud

ANS: 4

Q. In which of the following organs bile is stored ?

1) Spleen

2) Pancreas

3) Appendix

4) Gallbladder

ANS: 4

Q. Deficiency of which of the following vitamins causes the disease of slow blood clotting ?

1) Vitamin C

2) Vitamin D

3) Vitamin E

4) Vitamin K

ANS: 4

Biology Quiz Questions with Answers

Q. The term ‘Ecosystem’ was first used in 1935 by –

1) Taylor

2) Clark

3) Tansley

4) Lindemann

ANS: 3

Q. ‘Bio-Diversity’ is –

1) Totality of all species, all genes and all ecosystems

2) Variety of plants

3) Variety of animals

4) Totality of cultural environment

ANS: 1

Q. Seeds of Sunflower plant contain –

1) Alkaloids

2) Oils

3) Dyes

4) Crystals

ANS: 2

Q. Fruit ripening hormone is –

1) Ethylene

2) Auxin

3) Kinetin

4) All of these

ANS: 1

Q. The main element of protein is –

1) Hydrogen

2) Nitrogen

3) Oxygen

4) Carbon

ANS: 4

Q. Which of the following causes Swine flue?

1) Virus

2) Bacteria

3) Fungi

4) Tape worm

ANS: 1

Q. Which of the following develops immune system in the body?

1) Antigen

2) Antibody

3) Enzymes

4) Hormones

ANS: 2

Q. The bird that can move its upper jaw is –

1) Pigeon

2) Parrot

3) Vulture

4) Sparrow

ANS: 2

Q. How many lobes are found in human lungs?

1) 2

2) 3

3) 4

4) 5

ANS: 4

Q. The drug produced through bio-technology for cancer treatment is-

1) Interferon

2) Insulin

3) H.G.H.

4) T.S.H.

ANS: 1

Biology Quiz Questions with Answers

Q. Which of the following is dominant in heredity?

1) Albinism

2) Rh-factor

3) Color blindness

4) Haemophilia

ANS: 4

Q. Minamata disease is caused due to –

1) Arsenic poisoning

2) Lead poisoning

3) Mercury poisoning

4) Cadmium poisoning

ANS: 3

Q. Which one of the following pairs is not correctly matched?

1) Ebola Virus – Small Pox

2) Biometric identification – Fingerprints and Iris scan

3) Cloning – Genetic replica

4) DNA Fingerprinting – Paternity or criminal identification

ANS: 1

Q. Bacillus thuringiensis is used as –

1) Biofertilizer

2) Biological pesticide

3) Chemical fertilizer

4) Chemical insecticide

ANS: 2

Q. Which Vitamin is required for in clotting of blood?

1) Vitamin A

2) Vitamin C

3) Vitamin E

4) Vitamin K

ANS: 4

Note: Vitamin K is a group of structurally similar, fat-soluble vitamins the human body requires for complete synthesis of certain proteins that are prerequisites for blood coagulation that the body needs for controlling binding of calcium in bones and other tissues.

Q. Radio Carbon Dating is use to estimate the age of –

1) Soil

2) Monuments

3) Fossils

4) Rocks

ANS: 3

Q. Male mosquitoes take their food from –

1) The human blood

2) The standing water

3) The sap of plants

4) The dung and other debris

ANS: 3

Q. Casuarina is a –

1) Hydrophyte

2) Mesophyte

3) Xerophyte

4) Epiphyte

ANS: 3

Q. The ‘fine respiratory particles’ which deteriorate air quality for breathing by human beings are categorized as –

1) PM 0.0

2) PM 2.5

3) PM 8.5

4) PM 10.0

ANS: 2

Q. The snow leopard population is found in –

1) Sikkim

2) Assam

3) Mizoram

4) Manipur

ANS: 1

Q. Total interacting animals and plants in any well defined area is known as –

1) Population

2) Biome

3) Community

4) Species

ANS: 4

Q. The most healthy edible oil for heart is –

1) Butter oil

2) Olive oil

3) Rape-seed oil

4) Mustard oil

ANS: 2

Q. Among the given nutrients, milk is a poor source of –

1) Calcium

2) Protein

3) Carbohydrate

4) Vitamin C

ANS: 4

Biology Quiz Questions with Answers

Q. The body fights infections with the help of –

1) Plasma

2) Antigen

3) Good Food

4) Immune System

ANS: 4

Q. Cub is a baby animal related to –

1) Tiger, Bear, Lion

2) Tiger, Bear, Elephant

3) Bear, Elephant, Lion

4) Lion, Tiger, Camel

ANS: 1

Q. The hormone which is not directly associated with reproduction is –

1) Testosterone

2) Oestrogen

3) Progesterone

4) Parathormone

ANS: 4

Q. Ram wants to bite into an apple. Which type of teeth will be use?

1) Incisors

2) Canines

3) Premolars

4) Molars

ANS: 1

Q. Which of the following is a fish?

1) Jelly Fish

2) Lobster

3) Salmon

4) Whale

ANS: 3

Q. Which of the following is a fungal disease?

1) Ringworm

2) Mumps

3) Rabies

4) Malaria

ANS: 1

Q. Use of disposable syringes is usually advised to prevent –

1) Rabies

2) Mumps

3) AIDS

4) Cancer

ANS: 3

Q. Which of the following is not a good source of protein?

1) Potato

2) Mushroom

3) Nuts

4) Meat

ANS: 1

Q. Caterpillar is a –

1) Cocoon

2) Larva

3) Embryo

4) Pupa

ANS: 2

Q. DNA stands for –

1) Degenerated Neuron Activation

2) Double Neuron Activation

3) Dinucleic Acid

4) Deoxyribonucleic Acid

ANS: 4

Q. Which of the following is not a sensory organ?

1) Ear

2) Tounge

3) Nose

4) Brain

ANS: 4

Q. Which is the smallest gland in human body?

1) Liver

2) Thyroid

3) Pituitary

4) Salivary Gland

ANS: 3

Q. Study of organisms in relation to their environment its called –

1) Palynology

2) Ecology

3) Zoology

4) Entomology

ANS: 2

Q. Stamens are fused with each other by their anthers and also with the petals in –

1) Euphorbiaceae

2) Leguminosae

3) Liliaceae

4) Compositae

ANS: 4

Q. The plants, which grow under water stress conditions of deserts are –

1) Sciophytes

2) Epiphytes

3) Xerophytes

4) Heliophytes

ANS: 3

Q. The type of fruit obtained from a multicarpillary apocarpous gynoecium is –

1) multiple

2) composite

3) aggregate

4) simple

ANS: 1

Biology Quiz Questions with Answers

Q. Coupling and repulsion are the two states of –

1) crossing over

2) linkage

3) chiasma

4) mutation

ANS: 2

Q. Where does the cabbage store food?

1) Root

2) Leaves

3) Stem

4) Fruit

ANS: 2

Q. Silk is the secretion of –

1) Salivary Glands

2) Thoracic Glands

3) Abdominal Glands

4) None of these

ANS: 1

Q. Which tree is referred to as ‘Subabul’ –

1) Prosopis juliflora

2) Leucaena leucocephala

3) Albizzia lebbeck

4) Pithecolobium saman

ANS: 2

Q. Essential oils contain

1) Alkaloids

2) Terpenoids

3) Porpoise

4) Steroids

ANS: 2

Q. What could be the function attributed to the transfusion tissue found in Cycas leaflets?

1) Mechanical

2) Conduction

3) Storage

4) Photosynthesis

ANS: 2

Q. A compound used in medicine as a pain killer is –

1) Urotropine

2) Chloroform

3) Aspirin

4) Ethyl alcohol

ANS: 3

Q. The least distance of distinct vision is –

1) 35 cm

2) 25 cm

3) 45 cm

4) 15 cm

ANS: 2

Q. Branch of Biology deals with extinct organisms –

1) Palynology

2) Phylogency

3) Palawobotany

4) Palaeontology

ANS: 4

Biology Quiz Questions with Answers

Q. The other name for phloem is –

1) Wood

2) Sclereid

3) Fibre

4) Bast

ANS: 4

Q. Which one of the following is both a local anesthetic as well as a stimulant?

1) Cocaine

2) Alcohol

3) Heroin

4) Quinine

ANS: 1

Q. Under the Nuclear Power Projects, Environmental Effects that have to be studied and resolved are –

1) Radioactive contamination of air, soil and water

2) Deforestation and loss of flora and fauna

3) Radioactive waste disposal

4) All of the above

ANS: 4

Q. Which one of the following vitamins is helpful in keeping a dream in memory for a longer duration?

1) Vitamin A

2) Vitamin D

3) Vitamin B-6

4) Vitamin C

ANS: 3

Q. Which one of the following fuels causes minimum environmental pollution?

1) Diesel

2) Coal

3) Hydrogen

4) Kerosene

ANS: 3

Q. The hormone related to drought tolerance is –

1) Abscisic acid

2) Gibberellin

3) Indole Acetic acid

4) Cytokinin

ANS: 1

Q. Which one of the following animals has three chambered heart?

1) Monkey

2) Crocodile

3) Fish

4) Frog

ANS: 4

Q. Drawfing gene in Wheat is –

1) Norin -10

2) Dee-gee-woo-gee

3) Opaque-2

4) None of the above

ANS: 1

Q. The virus responsible for AIDS is an example of –

1) Adeno virus

2) Mosaic virus

3) T-even virus

4) Retro virus

ANS: 4

Q. Desert plants are generally –

1) Viviparous

2) Succulent

3) Herbaceous

4) Heterophyllous

ANS: 2

Q. Food Poisoning (Botulism) is caused by infection of a species of –

1) Azotobacter

2) Lacto bacillus

3) Clostridium

4) Rhizobium

ANS: 3

Q. Chlorophyll contains –

1) Iron

2) Copper

3) Magnesium

4) Manganese

ANS: 3

Biology Quiz Questions with Answers

Q. Yeast is an example of –

1) bacteria

2) fungus

3) virus

4) algae

ANS: 2

Q. Forest fires are natural sources of –

1) Carbon monoxide

2) Hydrocarbons

3) Hydrogen sulphide

4) Nitrogen dioxide

ANS: 1

Q. ATP stands for –

1) Adenosine triphosphate

2) Alanine triphosphate

3) Adrenalin triphosphate

4) Asparagine triphosphate

ANS: 1

Q. Gall bladder stones are deposits of –

1) Calcium

2) Phosphorus

3) Glucose

4) Cholesterol

ANS: 4

Q. Carotene is found in –

1) Lemon

2) Carrot

3) Radish

4) Turnip

ANS: 2

Q. Trees shed their leaves in winter season to –

1) Conserve heat

2) Take rest after the summer growth

3) Conserve water

4) Escape being eaten by animals

ANS: 1

Q. Which one of the following sets of elements was primarily responsible for the origin of life on the earth?

1) Hydrogen, Oxygen, Sodium

2) Carbon, Hydrogen, Nitrogen

3) Oxygen, Calcium, Phosphorus

4) Carbon, Hydrogen, Potassium

ANS: 2

Q. A genetically engineered form of brinjal known as the BT-brinjal has been developed. The objective of this is –

1) To make it pest resistant

2) To improve its taste and nutritive qualities

3) To make it drought resistant

4) To make its shelf life longer

ANS: 1

Q. Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

1) The activate the enzymes necessary for vitamin synthesis in the body an help avoid unnecessary wastage of energy

2) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy

3) They neutralise free radicals produced in the body during metabolism

4) The activate certain genes in the cells of the body and help delay the ageing process

ANS: 3

Q. Foot and Mouth disease occurs in –

1) Cattle

2) Cattle and Sheep

3) Cattle and Pigs

4) Cattle, Sheep and Wine

ANS: 3

Q. The naturally occurring anticoagulant in the human blood is –

1) Hirudin

2) Heparin

3) Fibrinogen

4) Serotonin

ANS: 2

Q. The term ‘gene’ for the factors controlling heredity was coined by –

1) Gregor-Mendal

2) Hugo de vries

3) T.H. Morgan

4) W. Johannsen

ANS: 4

Q. Which one of the following spices is obtained from flower buds?

1) Clove

2) Cumin

3) Nutmeg

4) Coriander

ANS: 1

Q. Lichen is a symbiotic association between an alga and which one of the following?

1) A bacterium

2) Fungus

3) Liverwort

4) Fern

ANS: 2

Q. Bacteriophages –

1) A kind of soil bacteria

2) Bacteria growing in phases

3) Parasitic bacteria infecting man

4) Virus infecting bacteria

ANS: 4

Q. The Mammal that lays eggs is –

1) Kangaroo

2) Duck-billed platypus

3) Opossum

4) Other

ANS: 2

Q. A prokaryote is –

1) a single celled organism

2) a hard and stony fruit

3) an organism lacking membrane bound nucleus in its cells

4) None of the above

ANS: 3

Q. Haemoglobin is –

1) The colouring matter of leaves of plants

2) The colouring matter of Blood

3) A compound present in Milk

4) A compound that transmits signal to the Brain

ANS: 2

Q. Which vitamins are those which if taken in excess can be dangerous as they are stored in the body?

1) B Complex

2) E and C

3) B and C

4) A and D

ANS: 4

Q. Hypothermia occurs due to loss of excessive heat from body due to sudden low body temperature in –

1) Snakes

2) Frogs

3) Human beings

4) Lizards

ANS: 3

Q. The hormone used as an oral contraceptive is –

1) Aldesterone

2) Cortisone

3) Progesterone

4) Testosterone

ANS: 3

Q. In dicots the pollen-grains posses –

1) One germ pore

2) Two germ pore

3) Three germ pore

4) Four germ pore

ANS: 3

Q. The disease that has been eradicated from the world is –

1) Small pox

2) Leprosy

3) Poliomyelitis

4) Chicken pox

ANS: 1

Biology Quiz Questions with Answers

Q. DPT vaccine is administered to prevent disease like

1) Diphtheria, Pertussis and Typhoid

2) Diphtheria, Pertussis and Tetanus

3) Dengue, Pertussis and Typhoid

4) Dengue, Polio and Tetanus

ANS: 2

Q. Blood is a –

1) Reproductive tissue

2) Connective tissue

3) Epithelial tissue

4) Muscular tissue

ANS: 2

Q. Pick out the correct match –

1) Egg Yolk – Protein and Fat

2) Fleshy foods – Calcium and Protein

3) Fish – Starch and Vitamin

4) Milk – Fibre and Mineral

ANS: 1

Q. Blood group was discovered by –

1) Alexander Fleming

2) William Harvey

3) Landsteiner

4) Pavlov

ANS: 3

Q. Which of the following is an endemic species?

1) Nicobar pigeon

2) Hornbill

3) Indian rhino

4) Pink head duck

ANS: 1

Q. Which of the following is the major component of ecosystem?

1) Biotic

2) Abiotic

3) Energy

4) All of the above

ANS: 4

Q. From which of the following endocrine glands is GTH secreted?

1) Adrenal gland

2) Islets of Langerhans in pancreas

3) Pituitary gland

4) Thyroid gland

ANS: 3

Q. In which organ of the body is the red blood corpuscle made?

1) Liver

2) Bone marrow

3) Kidneys

4) Heart

ANS: 2

Q. Which one of the following constitutes two best reasons for distinguishing the living from the nonliving?

1) Respiration and excretion

2) Reproduction and locomotion

3) Irritability and locomation

4) Growth and locomation

ANS: 1

Biology Quiz Questions with Answers

Q. What is the name of the mode of reproduction by which the offspring arises from a single parent, and inherits the genes of that parent only?

1) Sexual

2) Asexual

3) Vegetative

4) Mono sexual

ANS: 2

Q. What is the directional growth movement of a plant part in response to the touch of an object called?

1) Thigmotropism

2) Geotropism

3) Chemotropism

4) Phototropism

ANS: 1

Q. Evolutionary principles have been used for classification of animals and plants. According to this, HUMANS come under which class?

1) Mammalia

2) Arthropoda

3) Aves

4) Amphibian

ANS: 1

Q. Deforestation has an alarming effect on

1) Increase in gazing area

2) Sunlight

3) Weed control

4) Soil erosion

ANS: 4

Q. Enzyme ptyalin is produced by

1) Gastric Gland

2) Islets of Langerhans

3) Liver

4) Salivary Glands

ANS: 4

Q. Enzymes are basically

1) Fats

2) Carbohydrates

3) Proteins

4) Vitamins

ANS: 3

Q. Which one of the following is the smallest gland in the body?

1) Adrenal

2) Thyroid

3) Pancreas

4) Pituitary

ANS: 2

Q. The number of amino acids, known so far, is

1) 12

2) 22

3) 32

4) 42

ANS: 2

Q. Plants are killed in winter by frost

1) Because of desiccation and mechanical damage to the tissue

2) Because no photosynthesis takes place at such low temperature

3) Because respiration ceases at such low temperature

4) Because there is no transpiration

ANS: 1

Q. Antigene are a

1) Carbohydrates

2) Fat

3) Hormone

4) Protein

ANS: 4

Q. Energy flow in an ecosystem is –

1) Cyclic

2) Multidirectional

3) Sequential

4) Unidirectional

ANS: 4

Q. When the right ventricle in the human heart contracts, the blood moves to –

1) Aorta

2) Brain

3) Lungs

4) Pulmonary arteries

ANS: 4

Q. Who among the following is associated with the theory of inheritance of acquired characteristics?

1) Charles Darwin

2) Lamarck

3) Spencer

4) De Vries

ANS: 2

Note: In ecology, energy flow, also called the calorific flow, refers to the flow of energy through a food chain. In an ecosystem, ecologists seek to quantify the relative importance of different component species and feeding relationships

Q. Which one of the following plant hormones includes flowering in long-day plants?

1) Auxin

2) Cytokinin

3) Ethylene

4) Gibberellin

ANS: 4

Q. Usually when tomatoes are plucked they are green. They become red later because the

1) Chloroplast disappears and new chromoplasr arises

2) Chloroplast gets converted into chromoplast

3) Chromoplast gets converted into chloroplast

4) None of the above

ANS: 2

Q. The basic building blocks of proteins are

1) Amino acids

2) DNA

3) Nitrogenous bases

4) RNA

ANS: 1

Q. Which of the following carry genetic information?

1) Carbohydrates

2) Fatty acids

3) Nucleic acids

4) Proteins

ANS: 3

Q. Lipase, an enzyme, break up

1) Fats into fatty acids and glycerine

2) Insulin into fructose

3) Maltose into glucose

4) Peptones into amino acids

ANS: 1

Q. Genetic mutation occurs in

1) DNA

2) RNA

3) Chromosomes

4) Ribosomes

ANS: 1

Q. Bile secreted by the liver gets stored in the

1) Gall blader

2) Duodenum canal

3) Liver itself

4) Spleen

ANS: 1

Biology Quiz Questions with Answers

Q. Excretory organs of insects are

1) Nephridia

2) Malpighian tubules

3) Green glands

4) All of the above

ANS: 2

Q. Which one of the following are colonial in habit?

1) Termites

2) Bed bugs

3) Aphids

4) Locusts

ANS: 1

Q. The food in onion is stored in the form of

1) Cellulose

2) Protein

3) Starch

4) Sugar

ANS: 1

Q. Which of the following is used by green plants for the manufacture of sugar?

1) Carbon dioxide

2) Sunlight

3) Water

4) All of the above

ANS: 4

Note: This entire process is called ‘Photo-synthesis’ in which the plants use carbon dioxide, water and sunlight to produce sugar.

Q. Venom of cobra attacks on –

1) Nervous System

2) Respiratory system

3) Digestive system

4) Circulatory system

ANS: 1

Note: The Venom-a poisonous substance/juice of cobra snake attacks on nervous system of the body that disturbs and cause adverse effect.

Q. Bacteria do not need sunlight to grow because –

1) They lack chlorophyll and so they are incapable of making their own food

2) They hate sunlight

3) They use other kinds of light for their food synthesis

4) They prepare their food without the help of sunlight

ANS: 4

Note: Bacteria prepare independently their food without the help of sunlight, while in plants the photosynthesis for preparing food is done by sunlight for chlorophyll development.

Q. Mitosis actually means

1) Division of cytoplasm only

2) Division of nucleus only

3) Reduction in number of chromosomes

4) Both nuclear and cytoplasmic division

ANS: 4

Q. Cotton fibres are made of

1) Cellulose

2) Starch

3) Protein

4) Fats

ANS: 1

Biology Quiz Questions with Answers

Q. The first person to see a cell under microscope was

1) Robert Hooke

2) A. V. Leuwenhock

3) T. Schwan

4) M. Schleiden

ANS: 1

Q. Mutation is

1) A factor responsible for plant growth

2) A change that is inherited

3) A change which affects the offspring of F2 generation only

4) A change which affects the parents only but never inherited

ANS: 2

Q. Edible part of coconut is

1) Seed coat

2) Endocarp

3) Endosperm

4) Carpel wall

ANS: 3

Q. Which of the following is studied by palaeontologists?

1) Genes

2) Plants

3) Pollen

4) Fossils

ANS: 4

Q. The function of endoplasmic reticulum is

1) Acrosome formation

2) Lysosome formation

3) Synthesis of steroid hormones

4) Secretion of proteins

ANS: 3

Q. What role does enzyme pepsin play?

1) It converts fats into acids

2) It converts fats into glycerol

3) It converts proteins into peptones

4) It converts starch into sugar

ANS: 3

Q. The human liver performs all of the following functions, except

1) Production of hormones

2) Detoxification of toxins

3) Storage of glycogen

4) Formation of bile

ANS: 1

Q. Golgi body is found in

1) RBC in man

2) All the cells

3) All the cells except RBC and baceria

4) Only bacterial cells

ANS: 3

Q. On which of the following plants did Gregor Mendel perform his classical experiment?

1) Gram

2) Maize

3) Pea

4) Wheat

ANS: 3

Q. Who propounded the story of natural selection?

1) Mendel

2) Lamarck

3) Darwin

4) De Vries

ANS: 3

Q. A coenzyme is an

1) Nucleic acid

2) Organic compound

3) Carbohydrate that controls enzymatic activity

4) Vitamin that acts with an enzyme

ANS: 4

Q. Which of the following digestive enzymes is present in the saliva?

1) Amylase

2) Lipase

3) Ptyalin

4) Trypsin

ANS: 3

Q. People suffering from ‘anorexia nervosa’

1) develop paralysis

2) show poor reflex

3) cannot speak properly

4) eat very little and fear gaining weight

ANS: 4

Q. Which one of the following elements is present in green pigment of leaf?

1) Magnesium

2) Phosphorus

3) Iron

4) Calcium

ANS: 1

Note: Magnesium (Mg) is an essential constituent of chlorophyll in plant leaf. It is also necessary for the formation of oil.

Q. Which method of water purification does not kill microorganism?

1) Boiling

2) Filtration

3) Chlorination

4) UV-irradiation

ANS: 2

Q. Among the following animals, choose the one having three pairs of legs.

1) Spider

2) Scorpion

3) Bug

4) Mite

ANS: 3

Q. Two strands of DNA are held together by –

1) hydrogen bonds

2) covalent bonds

3) electrostatic force

4) van der Waals’ forces

ANS: 1

Q. Which of the following does not possess a specialized conducting tissue for transport of water and other substances in plants?

1) Marchantia

2) Marsilea

3) Cycas

4) Fern

ANS: 3

Q. Which one of the following is the example of subsistence farming?

1) Shifting cultivation

2) Commercial farming

3) Extensive and intensive farming

4) Organic farming

ANS: 1

Note: Shifting cultivation is the example of subsistence farming, commonly practiced in hilly states like Assam. When soil fertility due to continuous cropping on a fixed land is reduced, the farmers shift to another place in shifting cultivation.

Q. Which of the following structures of a plant is responsible for transpiration?

1) Xylem

2) Root

3) Stomata

4) Bark

ANS: 3

Q. The sex of a newborn baby is determined by the chromosome inherited from

1) The mother

2) The father

3) Mother’s mother

4) Father’s father

ANS: 2

Q. Which one among the following statements about a healthy diet is correct?

1) Regular eating of high energy snacks between meals is healthy since it provide energy and vitamins in plenty.

2) Fruits and vegetables make a good choice because their energy content is high.

3) A balanced diet must contain plenty of fat and protein with little carbohydrates and fibre.

4) An optimal quantity of fat, protein, carbohydrate with adequate amount of water and fibre makes a healthy diet

ANS: 4

Q. The complete digestion of carbohydrates, proteins and fats occurs in

1) Stomach

2) Liver

3) Small Intestine

4) Large Intestine

ANS: 3

Q. Which of the following statements about sexual reproduction in flowering plants are correct?

1. Stamen is present in the centre of a flower.

2. Stamen produces pollen grains in the ovary.

3. The swollen bottom part of carpel is the ovary.

4. The fusion of germs cells gives rise to zygote.

Select the correct answer using the code given below.

1) 2, 3 and 4 only.

2) 2 and 4 only.

3) 1 and 3 only.

4) 1, 2, 3 and 4

ANS: 4

Q. The human eye is like a camera and hence it contains a system of lens. The eye lens forms

1) A straight or upright, real image of the object on the retina.

2) An inverted, virtual image of the object on the retina.

3) An inverted, real image of the object on the retina.

4) A straight or upright, real image of the object on the iris.

ANS: 3

Q. Which one among the following hormones stimulates the plant cells to grow in a manner such that the plant appears to be bent towards light?

1) Cytokinin

2) Auxin

3) Gibberellin

4) Abscisic Acid

ANS: 2

Q. The main thinking part of the brain is

1) Midbrain

2) Hypothalamus

3) Forebrain

4) Hindbrain

ANS: 3

Q. The pH of fresh milk is 6. When it turns sour, the pH

1) becomes < 6

2) remains the same, i.e., 6

3) becomes > 6

4) becomes neutral i.e., 7

ANS: 1

Q. Consider the following statements regarding osmosis in animal cells:

1. If the water potential of the solution surrounding the cell is too high, the cell shrinks.

2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts.

3. It is important to maintain a constant water potential inside the animal body.

4. In animal cells, water potential far exceeds the solute potential.

Which of the statements given above is/are correct?

1) 1 and 2

2) 3 only

3) 4

4) 2 and 3

ANS: 2

Q. Consider the following statements in relation to plant tissue ‘chlorenchyma’:

1. It is formed by the palisade and spongy mesophyll.

2. It is a form of parenchyma which contains chloroplasts.

3. It serves to transport organic solutes made by photosynthesis.

4. It is a thin transparent layer which has chiefly a protective function.

Which of the statements given above is/are correct?

1) 1 and 2 only

2) 1, 2 and 3

3) 2 and 4

4) 1 only

ANS: 2

Q. Consider the following disease:

1. Cholera

2. Tuberculosis

3. Filaria

4. Typhoid

Which of the above disease are caused by the bacteria?

1) 1 and 3 only

2) 2 and 4 only

3) 1, 3 and 4

4) 1, 2 and 4

ANS: 4

Q. The enzyme that converts glucose to ethyl alcohol is –

1) Invertase

2) Maltase

3) Zymase

4) Diastase

ANS: 3

Q. The compounds leading to origin of life were –

1) Urea and nucleic acids

2) Amino acids and urea

3) Proteins and nucleic acids

4) Protein and amino acids

ANS: 3

Q. Vitamin K is necessary for –

1) Prevention of rickets

2) Prevention of pernicious anaemia

3) Formation of Prothrombin

4) Formation of DNA

ANS: 3

Q. Aldo sterone regulates –

1) Blood Gulcose

2) Serum Calcium

3) Urine Concentration

4) Sodium Absorption

ANS: 4

Q. The vitamin useful in alcoholism is

1) Thiamine

2) Pyridoxine

3) Folic acid

4) Ascorbic acid

ANS: 1

Q. Which is naturally occurring antimalarial drug?

1) Quinacrine

2) Artimisinine

3) Mefloquine

4) Mepacrine

ANS: 2

Q. Beri-Beri is caused by the lack of vitamin –

1) O

2) D

3) B1

4) A

ANS: 3

Q. Which of the following food items is rich in iron?

1) Rice

2) Apple

3) Pulses

4) Orange

ANS: 2

Biology Quiz Questions with Answers

Q. The acid in gastric juice is

1) acetic acid

2) nitric acid

3) hydrochloric acid

4) sulphuric acid

ANS: 3

Q. Who proposed the adage “Survival of the fittest”?

1) William

2) Huxley

3) Lamarck

4) Darwin

ANS: 4

Q. Nematocysts are present in

1) Ascaris

2) Centipede

3) Sea anemone

4) Starfish

ANS: 3

Q. BCG vaccination is given at the age of

1) 10 years

2) Newborn

3) Within 15 days

4) 2-3 years

ANS: 2

Q. Contraceptive pills in the market contain

1) Herbicides

2) Antibiotics

3) Steroid hormones

4) Inorganic compounds

ANS: 3

Q. Master copy of genetic information is

1) r-RNA

2) m-RNA

3) DNA

4) Nucleus

ANS: 3

Q. Which of the following is present in Chlorophyll molecule?

1) Mg

2) Fe

3) K

4) Mn

ANS: 1

Q. Which of the following microorganisms is used in Milk curdling?

1) Leuconostoc

2) Bacillus

3) Lactobacillus

4) Acetobacter

ANS: 3

Q. ‘Malt’ a stage of grains during beer formation refers to the

1) Germinated wet grain

2) Dry grain

3) Mashed grain

4) Powdered grain

ANS: 1

Q. Which one of the following is not obtained from the bark of the tree?

1) Quinine

2) Tannin

3) Bhang

4) Cinnamon

ANS: 3

Q. A shallow root system of plants will develop if the moist layer of the soil in which the plants are growing is

1) Near the surface

2) Deep-seated

3) Saline in nature

4) Sandy in nature

ANS: 1

Q. Which of the following acids helps in human digestion?

1) Lactic

2) Tartaric

3) Hydrochloric

4) Sulphuric

ANS: 3

Q. Deforestation accelerates soil erosion and also affects the sub-surface water flow. These two factors adversely affect the –

1) Human resources

2) Ecosystem

3) Climate

4) Local vegetation

ANS: 2

Q. The sour taste of vinegar is due to

1) Lactic acid

2) Citric acid

3) Acetic acid

4) Tartaric acid

ANS: 3

Q. Apple fruit is a –

1) Compound samara

2) Succulent pome

3) Succulent Pepo

4) Succulent drupe

ANS: 2

Q. Urea is synthesised in the –

1) Liver

2) Lung

3) Spleen

4) Kidney

ANS: 1

Q. Litmus is extracted from

1) Turmeric

2) Bark of Cinchona

3) Lichens

4) Mushroom

ANS: 3

Q. The malaria parasite responsible for malignant malaria is –

1) Plasmodium malariae

2) Plasmodium falciparum

3) Plasmodium vivax

4) Plasmodium ovale

ANS: 2

Q. Hypothermia occurs due to loss of excessive heat from body due to sudden low body temperature in:

1) Snake

2) Frogs

3) Human beings

4) Lizards

ANS: 3

Q. The hormone used as an oral contraceptive is:

1) Aldesterone

2) Cortisone

3) Progesterone

4) Testosterone

ANS: 3

Q. In dicots the pollen-grains posses:

1) One germ pore

2) Two germ pores

3) Three germ pores

4) Four germ pores

ANS: 3

Q. The disease that has been eradicated from the world is :

1) Smallpox

2) Leprosy

3) Poliomyelitis

4) Chickenpox

ANS: 1

Q. DPT vaccine is administered to prevent disease like:

1) Diphtheria, Pertussis and Typhoid

2) Diphtheria, Pertussis and Tetanus

3) Dengue, Pertussis and Typhoid

4) Dengue, Polio and Tetanus

ANS: 2

Q. Blood is a –

1) Reproductive tissue

2) Connective tissue

3) Epithelial tissue

4) Muscular tissue

ANS: 2

Q. Pick out the correct match:

1) Egg yolk – Protein and Fat

2) Fleshy food – Calcium and Protein

3) Fish – Starch and Vitamin

4) Milk – Fibre and Mineral

ANS: 1

Q. Blood group was discovered by –

1) Alexander Fleming

2) William Harvey

3) Landsteiner

4) Pavlov

ANS: 3

Q. Which of the following is an endemic species?

1) Nicobar pigeon

2) Horn bill

3) Indian Rhino

4) Pink-head duck

ANS: 1

Q. Activity of an enzyme can be modulated by change of

1) pH

2) Light

3) Humidity

4) Rainfall

ANS: 1

Q. Jaundice is a disease which affects

1) Heart

2) Liver

3) Spleen

4) Gall bladder

ANS: 2

Q. Which of the following is an endangered species?

1) Black buck

2) Blue sheep

3) Gangetic dolphin

4) Mithun

ANS: 3

Q. Which one of the following endocrine gland is situated in the neck?

1) Pancreas

2) Thyroid

3) Pituitary

4) Adrenals

ANS: 2

Q. The seat of intelligence is situated in the

1) cerebrum

2) cerebellum

3) medulla

4) thalamus

ANS: 1

Q. Entomology is the study of

1) Birds

2) Insects

3) Fossils

4) Fungi

ANS: 2

Q. Cholesterol is absent in

1) Groundnut Oil

2) Butter oil

3) Buttermilk

4) Ice ceam

ANS: 2

Q. What is the Normal Blood Volume in human adult?

1) One litre

2) Three litres

3) Five litres

4) Seven litres

ANS: 3

Q. The fasting blood glucose level in adults in mg/100 ml is

1) 200

2) 160

3) 100

4) 60

ANS: 3

Q. The vital constituent of blood that helps in clotting is –

1) Platelets

2) Haemoglobin

3) Plasma

4) Serum

ANS: 1

Note: Coagulation begins almost instantly after an injury to the blood vessel has damaged the endothelium living the vessel. Exposure of the blood to proteins such as tissue factor initiates changes to blood platelets and plasma protein fibrinogen, a clotting factor platelets immediately form a plug at the site of the injury; this is called primary haemostasis.

Biology Quiz Questions with Answers

Q. Which of the following animals can hear ultrasonic sound?

1) Cat

2) Rat

3) Bat

4) Squirrel

ANS: 3

Q. Which part of the human body is highly affected by the nuclear radiation first?

1) Bone marrow

2) Skin

3) Lungs

4) Eyes

ANS: 4

Q. If someone damages his or her eyes in an accident, then he or she should consult an –

1) Ophthalmologist

2) Optician

3) Orthopedic

4) Oncologist

ANS: 1

Q. When a patient’s blood pressure is taken, the pressure exerted by blood on the walls of the blood vessel is measured. At what stage is this pressure measured?

1) When the heart sends out oxygenated blood to the body parts

2) When deoxygenated blood goes into the heart

3) At both the stage

4) At the in-between stage

ANS: 3

Q. The edible potato is the modified form of which part of the plant?

1) Roots

2) Stem

3) Flower

4) None of these

ANS: 2

Q. Which of the following pairs is NOT correctly matched?

Enzyme:Function/Characteristic

1) Trypsin: curdles the milk protein caesin

2) Zymase: Converts sugar to alcohol

3) Pepsin: Changes proteins into peptones

4) Ptyalin: Changes starch to maltose

ANS: 1

Q. Which one of the following is likely to give the most accurate picture of cell differentiation process?

1) Genomic studies

2) Proteomic studies

3) Apoptosis studies

4) Ribozyme studies

ANS: 2

Q. Which of the following pairs is NOT correctly matched?

1) Vitamin B1 : Thiamine

2) Vitamin B2 : Riboflavin

3) Vitamin B12 : Cobalanin

4) Vitamin B6 : Ascorbic Acid

ANS: 4

Q. Jamun-fruit has purple colour due to the presence of

1) Cartene

2) Anthoxanthin

3) Anthocyanin

4) Leucoanthocyanin

ANS: 3

Q. Soya bean is rich in –

1) Proteins

2) Vitamin C

3) Vitamin D

4) Vitamin A

ANS: 4

Q. Which of the following helps in clotting of blood?

1) Plasma

2) Thrombocytes

3) Leucocytes

4) Erythrocytes

ANS: 2

Q. Night Blindness is caused due to lack of –

1) Vitamin D

2) Vitamin C

3) Vitamin E

4) Vitamin A

ANS: 4

Q. A disease widely spread worldwide, is known as –

1) Pandemic

2) Endemic

3) Epidemic

4) Sporadic

ANS: 1

Q. RNA stand for –

1) Renucleic Acid

2) Random Nitrogen Access

3) Regulated Nitrogen Activation

4) Ribonucleic Acid

ANS: 4

Q. Which of the following can fly?

1) Hornbill

2) Ostrich

3) Emu

4) Penguin

ANS: 1

Q. Bacteria was discovered by –

1) Harvey

2) Leeuwenhoek

3) Landsteiner

4) Eijkman

ANS: 2

Q. Which of the following disease is not caused by virus ?

1) Small-pox

2) Mumps

3) Rabies

4) Diphtheria

ANS: 4

Q. Which of the following is a Mammal?

1) Frog

2) Crocodile

3) Snake

4) Platypus

ANS: 4

Q. Which of the following makes the skin layer impervious to water?

1) Collagen

2) Melanin

3) Keratin

4) Chitin

ANS: 4

Q. Which of the following weeds has been found useful to check water pollution caused by industrial effluents?

1) Parthenium

2) Elephant grass

3) Water hyacinth

4) Both (A) and (B) above

ANS: 2

Q. Two richest known sources of edible protein are

1) Meat and eggs

2) Milk and vegetables

3) Soyabean and groundnut

4) Some type of algae and other micro-organism

ANS: 3

Q. The percentage of plasma in the total blood volume in human beings is about

1) 45

2) 50

3) 55

4) 60

ANS: 3

Q. Which of the following animals does not make any sound?

1) Blue whale

2) Giraffe

3) Jaguar

4) Uma

ANS: 2

Q. The deficiency of which of the following vitamins is considered responsible for night blindness?

1) B

2) E

3) K

4) A

ANS: 4

Q. System of growing plants through water culture methods is known as

1) Hydrotropism

2) Hydrophobia

3) Hydroponics

4) Hydrophytes

ANS: 3

Q. ACTH hormone is secreted from

1) Adrenal cortex

2) Adrenal medulla

3) Pituitary gland

4) Pineal body

ANS: 3

Q. Law of heredity was put forward by

1) Mendel

2) Medeleev

3) Pavlov

4) Koch

ANS: 1

Q. Triple vaccine is administered to a new born child to immunise it agaist

1) Whooping cough, tetanus and measles

2) Whooping cough, tetanus and diphtheria

3) Tetanus, diphtheria, small pox and rubella

4) None of these

ANS: 2

Q. The fur of the animals living in colder regions

1) Protects them from water

2) Traps the air and keeps them warm

3) Protects them appear beautiful

4) makes them appear beautiful

ANS: 2

Q. In sea, plants are restricted up to the depth of

1) 20 m

2) 200 m

3) 1000 m

4) 2000 m

ANS: 2

Q. Which of the following amphibians lacks tongue?

1) Sphenodon

2) Salamander

3) Ichthyophis

4) Necturus

ANS: 3

Q. Which one of the following organs converts glycogen into glucose and purifies the blood?

1) Liver

2) Kidney

3) Lungs

4) Spleen

ANS: 1

Biology Quiz Questions with Answers

Q. Sieve plate is a part of

1) Cambium

2) Xylem

3) Cortex

4) Pholem

ANS: 4

Q. Pepsin secreting cells of gastric glands are

1) Oxyntic cells

2) Parietal cells

3) Chief cells

4) Goblet cells

ANS: 3

Q. Which of the following is a chromoprotein?

1) Mucin

2) Haemoglobin

3) Peptones

4) Vitelline

ANS: 2

Q. Minamata disease was caused due to

1) Lead

2) Cyanide

3) Mercury

4) Methyl isocyanate

ANS: 3

Q. Absence of fish along a river indicates

1) Zone of degradation

2) Zone of active decomposition

3) All zones of pollution

4) Zone of recovery

ANS: 1

Q. The lockjaw is a pathological condition of

1) Diphtheria

2) Polio

3) Paralysis

4) Tetanus

ANS: 4

Q. Humus is a type of

1) fossil seen on the rocks

2) decaying organic matters in soil

3) fertilisers applied in soil

4) special growth found in plants

ANS: 2

Q. Chloroform can be used as

1) Analgesic

2) Anaeshetic

3) Antimalarial

4) Antibiotic

ANS: 2

Q. What is gene?

1) A medicine to overcome old age

2) The smallest living organism

3) An elementary unit of heredity

4) None of the above

ANS: 3

Q. Diabetes is a disease affecting

1) Pancreas

2) Liver

3) Heart

4) Lungs

ANS: 1

Q. Which disease-causing germ is borne by Anopheles Mosquito?

1) Dengue

2) Encephalitis

3) Malaria

4) Filaria

ANS: 3

Q. Where do you see stomata in lotus leaf?

1) Only upper surface of leaf

2) Only lower surface of leaf

3) Both lower and upper surface of leaf

4) None of the above

ANS: 1

Q. Granites and gneisses Dhawwarian age are found in –

1) Siwalik Hills

2) Deccan Plateau

3) Chotanagpur Plateau

4) Kirthar Range

ANS: 2

Q. Oil is obtained from the endosperm of –

1) Groundnut

2) Coconut

3) Mustard

4) Sesame

ANS: 2

Q. In Photosynthesis, which of the following is released by green plants?

1) Oxygen

2) Nitrogen

3) Water-vappour

4) Carbon-dioxide

ANS: 1

Q. Which part chiefly carries blood from difference parts of our body to the heart?

1) Nerves

2) Arteries

3) Veins

4) All of the above

ANS: 3

Q. Who discovered that Malaria was caused by the female Anopheles?

1) Louis Pasteur

2) Robert Koch

3) Ronald Ross

4) Edward Jenner

ANS: 3

Q. Deficiency of Vitamin ‘K’ causes –

1) Scurvey

2) Non-clotting of blood

3) Night Blindness

4) Bery-Bery

ANS: 2

Q. Insulin is secreted from-

1) Kidney

2) Pituitary gland

3) Pancreas

4) Thyroid

ANS: 3

Q. The disease transmitted by blood-

1) Cholera

2) Tuberculosis

3) AIDS

4) Polio

ANS: 3

Q. The number of cervical vertebrae in mammal is –

1) Seven

2) Seventeen

3) Seventy Seven

4) Eleven

ANS: 1

Q. Limbless Amphibia belongs to the order –

1) Urodela

2) Anura

3) Gymnphiona

4) None of the above

ANS: 3

Q. Which one of the following is a rich source of amylase?

1) Brain

2) Blood

3) Thyroid

4) Pancreas

ANS: 4

Q. Birds differ from bat in the absence of –

1) Warm Blood

2) Four Chambered heart

3) Trachea

4) Diaphragm

ANS: 2

Q. Which one of the following is important strategy for the conservation of biodiversity ?

1) Biosphere Reserve

2) Botanical gardens

3) National Parks

4) Wild Life Sanctuaries

ANS: 1

Q. Among the biotic components of the ecosystem, the producer system is –

1) Cow

2) Peacock

3) Tiger

4) Green Plants

ANS: 4

Q. Which of has following group of gases contribute to the ‘Green House Effect’ ?

1) Ammonia and Ozone

2) Carbon monoxide and Sulphur dioxide

3) Carbon tetrafluoride and Nitrous oxide

4) Carbon dioxide and Methane

ANS: 4

Q. Which of the following is the most stable ecosystem ?

1) Desert

2) Moutain

3) Ocean

4) Forest

ANS: 3

Q. Which one of the following disease is not transmitted by tiger mosquitoes ?

1) Yellow fever

2) Dengue

3) Chikungunya

4) Japanese Encephalitis

ANS: 4

Q. Which one of the following air pollution can affect blood stream leading to death ?

1) Asbestos dust

2) Cadmium

3) Lead

4) Carbon monodioxide

ANS: 4

Q. Which one of the following is bio indicator of air pollution ?

1) Fern

2) Lichen

3) Money Plant

4) Dodder

ANS: 2

Q. The disease caused by deficiency of protein in children is –

1) Marasmus

2) Pellagra

3) Beri-Beri

4) Rickets

ANS: 1

Q. Photosynthesis using the invisible of the sunlight is done by some –

1) Trees

2) Algae

3) Bacteria

4) Fungi

ANS: 3

Q. Bamboo is classified as –

1) Bush

2) Tree

3) Grass

4) Weed

ANS: 3

Q. Which of the following is not the Sexually Transmitted Disease (STD)?

1) AIDS

2) Gonorrhea

3) Anthrax

4) Chlamydiasis

ANS: 3

Q. Which of the following pair is not correctly matched ?

1) Vitamin D – Rickets

2) Vitamin A – Night Blindness

3) Vitamin c – Beri Beri

4) Vitamin E – Neurological Problems

ANS: 3

Q. Which one among the following gases readily combines with the haemoglobin of the blood?

1) Methene

2) Nitrogen dioxide

3) Carbon monoxide

4) Sulphur dioxide

ANS: 3

Q. In human, which one among the following, with reference to breathing, is correct?

1) During inhalation, diaphragm relaxes

2) During exhalation thorax cavity expands

3) During inhalation, intrapleural pressure becomes more negative

4) Unlike inhalation, normal exhalation is an active process

ANS: 3

Q. Dual-energy X-ray absorptiometry (DEXA) is used to measure –

1) Spread of solid tumour

2) Bone density

3) Ulcerous growth in stomach

4) extent of brain haemorrhage

ANS: 2

Q. Human blood is a viscous fluid.This viscosity is due to-

1) Proteins in blood

2) Platelets in plasma

3) Sodium in serum

4) RBC and WBC in blood

ANS: 1

Q. Cancer is more common in older people because-

1) Their immune systems have degenerated

2) The supply of certain hormones declines with age

3) Their bodies are unable to adjust to the changing environment

4) They have accumulated more mutations

ANS: 4

Q. What would happen if human blood becomes acidic (low pH)

1) Oxygen-carrying capacity of haemoglobin is increase

2) Oxygen-carrying capacity of haemoglobin is decrease

3) RBC count increase

4) RBC count decrease

ANS: 2

Biology Quiz Questions with Answers

Q. Which one among the following statements about blood transfusion is correct?

1) Blood group B and receive from group AB

2) Blood group B and AB, and receive from group B

3) Blood group B and AB, and receive from group A

4) Blood group O, and receive from group B

ANS: 2

Q. The gastrointestinal harmones namely secretin and cholecystokinin secreted by duodenal epithelium activate respectively Which organs to discharge their secretions?

1) Pancreas and gallbladder

2) Gallbladder and stomach

3) Pancreas and stomach

4) Stomach and small intestine

ANS: 3

Q. Milk is unique in its nutritive value. However, it is a poor source of –

1) Calcium

2) Iron

3) Copper

4) Sodium

ANS: 2

Q. The crew and passengers of a flying aircraft suffer generally from chronic obstructive pulmonary disease due to the effect of –

1) Solar radiation

2) Ozone Concentration

3) Nitrogen oxide

4) Particular pollutant

ANS: 4

Q. In the human body, the basic building blocks are

1) Bones

2) Nerves

3) Muscles

4) Cells

ANS: 4

Q. Insufficient blood supply in the human body is referred to as

1) Hemostasis

2) Haemorrhage

3) Ischaemia

4) Hyperemia

ANS: 3

Q. Goitre or abnormal enlargement of the the thyroid gland is caused by the deficiency of

1) Iron

2) Iodine

3) Potassium

4) Magnesium

ANS: 2

Q. A hereditary disease in which the blood does not clot and the affected person may bleed to death even from a small cut, is called

1) Hemophilia

2) Royal disease

3) Leukemia

4) Bleeder’s disease

ANS: 1

Q. Which among the following cell organelles is semi-permeable?

1) Cell membrane

2) Plasma membrane

3) Cell wall

4) Nucleus

ANS: 2

Q. The common edible mushroom is a

1) mass of fungal spores

2) tightly packed mycelium

3) type of hypha

4) structure used for producing asexual spores

ANS: 1

Q. Breeding and management of bees is called

1) Sericulture

2) Apiculture

3) Silviculture

4) Pisciculture

ANS: 2

Q. Excessive consumption of alcoholic drinks causes damage to

1) Liver

2) Lungs

3) Kidney

4) Heart

ANS: 1

Q. The fossil of Archaeopteryx represents the evidence of origin of-

1) birds from reptiles

2) mammals from reptiles

3) reptiles from amphibians

4) mammals from birds

ANS: 1

Q. The pH of human blood is normally around-

1) 7.5-8.0

2) 4.5-5.5

3) 5.5-6.5

4) 8.5-9.0

ANS: 1

Q. Which one among the following vitamins is necessary for blood clotting?

1) Vitamin D

2) Vitamin A

3) Vitamin K

4) Vitamin C

ANS: 3

Q. The macro-nutrients provided by inorganic fertilizers are –

1) carbon, iron and boron

2) nitrogen, phosphorus and potassium

3) magnesium, zinc and iron

4) magnesium, manganese and sulphur

ANS: 2

Q. Vermicompost is a/an –

1) Inorganic Fertilizer

2) Toxic Substance

3) Organic Biofertilizer

4) Synthetic Fertilizer

ANS: 3

Q. Which one among the following statements is correct?

1) All enzymes are proteins

2) All proteins are enzymes

3) None of the enzymes is protein

4) None of the proteins is enzyme

ANS: 1

Q. Which one of the following pairs is correctly matched?

1) Vitamin B1 – Retinol

2) Vitamin C – Calciferol

3) Vitamin B6 – Niacin

4) Vitamin B2 – Riboflavin

ANS: 4

Q. The scientist known as father of Genetics is –

1) Johnson

2) Morgan

3) F.B. Morrison

4) G.J. Mandel

ANS: 4

Q. Which one of the following is the biggest flower in the world ?

1) Sun flower

2) Lotus

3) Glory Lily

4) Rafflesia

ANS: 4

Q. Normal human blood is –

1) Neutral

2) Acidic

3) Variable

4) Alkaline

ANS: 4

Q. Adult Filaria worms live in human-

1) Blood

2) Lymphatics

3) Liver

4) Intestine

ANS: 3

Q. The ‘Theory of Natural Selection’ was proposed by –

1) J.B.S. Haldane

2) C.R. Darwin

3) A.I. Oparin

4) G.J. Mandel

ANS: 2

Q. The green colour of the leaves is due to the presence of

1) Lipids

2) Proteins

3) Carbohydrates

4) ChlorophyII

ANS: 4

Q. The edible part of an onion is

1) Fleshy leaves

2) Aerial stem

3) Aerial flower

4) Modified root

ANS: 1

Q. The normal body temperature of human beings is

1) 96.4 degree F

2) 97.4 degree F

3) 98.4 degree F

4) 99.4 degree F

ANS: 3

Q. Columba livia is the scientific name of

1) Snake

2) Pigeon

3) Shark

4) Rabbit

ANS: 2

Q. Bones are pneumatic in

1) Fishes

2) Reptiles

3) Birds

4) Amphibians

ANS: 3

Q. Which of the following produces highest amount of energy upon oxidation?

1) Glucose

2) Far

3) An alkane

4) Protein

ANS: 1

Biology Quiz Questions with Answers

Q. Who discovered the germ of malaria?

1) Lamarck

2) G.J. Mendel

3) De Vries

4) Ronald Ross

ANS: 4

Q. The number of cranial nerves is (human being)-

1) 12 nerves

2) 12 pairs of nerves

3) 31 nerves

4) 31 pairs of nerves

ANS: 2

Q. What is the other name for Vit. B2?

1) Haemoglobin

2) Dextrose

3) Thiamine

4) Riboflavin

ANS: 4

Q. Cockroach cannot survive in the water because it’s respiratory organ is

1) Gill

2) Book lung

3) Trachea

4) Pulmonary Sac

ANS: 3

Q. Chromosomes consist of

1) DNA and lipids

2) RNA and amino acids

3) RNA and sugar

4) DNA and proteins

ANS: 4

Q. Which of the following is known as ‘graveyard’ of RBCs?

1) Spleen

2) Liver

3) Bone marrow

4) Appendix

ANS: 1

Q. The most abundant constituent of atmospheric air is

1) Carbon

2) Hydrogen

3) Oxygen

4) Nitrogen

ANS: 4

Q. Which of the following pairs has open type of circulatory system?

1) Cockroach and Silverfish

2) Man and Whale

3) Earthworm and Leech

4) Tadpole larva and Fish

ANS: 1

Q. Fiber diet includes

1) fats

2) cellulose

3) proteins

4) glycogen

ANS: 2

Q. Which one of the following is responsible for converting milk into curd?

1) Virus

2) Yeast

3) Fungi

4) Bacteria

ANS: 4

Q. In how many groups can human blood be divided?

1) 4

2) 5

3) 2

4) 3

ANS: 1

Q. Which of the following is fundamentally the Rh factor?

1) An vitamin deficiency

2) A form of anaemia

3) An antigen-antibody reaction

4) A hormonal reaction

ANS: 3

Q. Life of a/an RBC in human blood is:

1) 30 days

2) 15 hours

3) 120 days

4) None of these

ANS: 3

Q. Which one of the following is given to a typhoid patient of common typhoid?

1) Sulphur

2) Chloromycetin

3) Vitamin A

4) Chloroquin

ANS: 2

Q. ‘Cod’ is a variety of –

1) Amphibia

2) Crop

3) Coral

4) Fish

ANS: 4

Q. A large number of identical plants can be obtained in a short span of time through –

1) Tissue culture technique

2) hydroponics method

3) Stem cuttings

4) Large number of seeds of a single plant

ANS: 1

Q. Leukaemia or blood cancer is characterised by abnormal increase of the –

1) White blood cells

2) Blood platelets

3) Blood Plasma

4) Red blood cells

ANS: 1

Q. The poison of honey bee is –

1) Saltish

2) Acidic

3) Protein

4) Alkaline

ANS: 2

Q. Birds which swim in water have –

1) Broad wings

2) Long beaks

3) Toes with claws

4) Webbed feet

ANS: 4

Q. Cooking oil is converted into vegetable ghee by the process of –

1) Crystallisation

2) Oxidation

3) Condensation

4) Hydrogenation

ANS: 4

Q. The longest bone in the body of human being is

1) Tibia

2) Femur

3) Fibula

4) Stapes

ANS: 2

Q. Oil which has maximum percentage of Polyunsaturated fatty acids is of

1) Coconut

2) Soyabean

3) Safflower

4) Walnut

ANS: 3

Q. Which of the following food items is rich in iron?

1) Apple

2) Rice

3) Orange

4) Pulses

ANS: 1

Q. Beri-Beri is caused by the lack of vitamin:

1) B1

2) A

3) D

4) C

ANS: 1

Q. The vitamin useful in alcoholism is:

1) Folic acid

2) Thiamine

3) Pyridoxine

4) Ascorbic acid

ANS: 2

Q. Which is naturally occurring anti-malarial drug?

1) Artimisinine

2) Quinacrine

3) Mepacrine

4) Mefloquine

ANS: 1

Q. Vitamin K is necessary for:

1) Formation of prothrombin

2) Prevention of rickets

3) Prevention of pernicious anaemia

4) Formation of DNA

ANS: 1

Q. Aldo sterone regulates:

1) Urine concentration

2) Sodium absorption

3) Blood glucose

4) Serum calcium

ANS: 2

Q. The compounds leading to origin of life were:

1) Urea and Nucleic acids

2) Proteins and amino acids

3) Amino acids and urea

4) Proteins and nucleic acids

ANS: 4

Q. Liver oil of fish is rich in

1) Vitamin E

2) Vitamin C

3) Vitamin D

4) Vitamin A

ANS: 4

Q. Which of the following is not present in the blood?

1) RBCs

2) Plasma

3) Placenta

4) WBCs

ANS: 3

Q. When applied to the affected area, which one of the following will relieve the pain due to ant-bite or bee-sting?

1) Baking soda

2) Caustic soda

3) Vinegar

4) Lemon Juice

ANS: 1

Q. Acupuncture is

1) A disease of heart

2) Servicing of tubes & tyres

3) A crop culture

4) A method of treatment with needles

ANS: 4

Q. The enzyme that converts glucose to ethyl alcohol is:

1) Diastase

2) Zymase

3) Maltase

4) Invertase

ANS: 2

Q. Which of the is a good and rich source of vitamin ‘C’?

1) Banana

2) Lemon Juice

3) Radish

4) Mango

ANS: 2

Q. ‘Darwin finches’ refers to a group of

1) Lizards

2) Birds

3) Fishes

4) Amphibians

ANS: 2

Q. The normal cholesterol level in human blood is

1) 180-200 mg

2) 140-180 mg

3) 120-140 mg

4) 80-120 mg

ANS: 1

Q. Syrinx is the voice box in

1) Mammals

2) Amphibians

3) Birds

4) Reptiles

ANS: 3

Q. The Dried flower buds are used as a spice in

1) Cloves

2) Saffron

3) Cardamom

4) Cinnamon

ANS: 1

Q. The tissue in man where no cell division occurs after birth is

1) Connective

2) Nerves

3) Germinal

4) Skeletal

ANS: 1

Biology Quiz Questions with Answers

Q. Which of the metals causes Itai-itai disease?

1) Cobalt

2) Copper

3) Chromium

4) Cadmium

ANS: 4

Q. The largest ecosystem of the Earth is

1) Biome

2) Biosphere

3) Hydrosphere

4) Lithosphere

ANS: 2

Q. Ina food chain, the solar energy utilised by plants is only

1) 0.1 percent

2) 10 percent

3) 1 percent

4) 0.01 percent

ANS: 1

Q. Which of the following actions is related with evaporation of sweat?

1) Exothermic Action

2) Endothermic Action

3) Chemical Action

4) Salty Reaction

ANS: 2

Q. The study related to the plants being used as vegetable is called –

1) Flori-culture

2) Pomology

3) Horticulture

4) Olericulture

ANS: 4

Q. Engyme is a –

1) Vitamin

2) Bacterium

3) Bio-catalyst

4) Virus

ANS: 3

Q. Which of the following is not an infectious disease?

1) AIDS

2) Chicken-pox

3) Mumps

4) Herpes Simplex

ANS: 1

Q. Which of the following is not a genetic disorder?

1) Down-syndrome

2) Haemophilia

3) Irritable Bowi Syndrome (IBS)

4) Sickle cell Anaemia

ANS: 3

Q. Which of the following is of organic origin?

1) Coral

2) Emerald

3) Ruby

4) Topaz

ANS: 1

Q. What rays of sunlight are mostly utilized by chlorophyll in photosynthesis?

1) Red

2) Yellow

3) Green

4) Blue

ANS: 1

Q. In surgery, what is arthoplasty?

1) Open heart surgery

2) Hip-joint replacement

3) Kidney transplant

4) Blood Transfusion

ANS: 2

Q. ‘Biosphere Reserve Project’ is aimed at protecting

1) Cattle population

2) Human beings from pollution

3) Flora and Fauna

4) Environment

ANS: 3

Q. Egg is rich source of nutrients except

1) Fats

2) Vitamin D

3) Protein

4) Vitamin C

ANS: 4

Q. Azolla is often used as biofertilizer, because it is associated with –

1) Moss

2) Blue Green Algae

3) Red Algae

4) Fungus

ANS: 2

Q. Diseases of which of the following pairs are caused by virus?

1) Polio and Bird Flu

2) Malaria and Polio

3) Polio and Tuberculosis

4) Tuberculosis and Influenza

ANS: 1

Q. Nepenthes Khasiana, a rare and endangered plant is found in-

1) Meghalaya

2) Himachal Pradesh

3) Madhya Pradesh

4) Uttar Pradesh

ANS: 1

Q. Opium is obtained from which part of the poppy plant?

1) Unripe Fruits

2) Flower

3) Leaves

4) Roots

ANS: 1

Q. Amongst the following flying organisms, which one does not belong to the group, Aves?

1) Eagle

2) Parrot

3) Crow

4) Bat

ANS: 4

Q. which one of the following spices is a floral bud?

1) Pepper

2) Clove

3) Cumin

4) Turmeric

ANS: 2

Q. Which one among the following is not correct about Down’s syndrome?

1) Affected individual has early ageing

2) It is genetic disorder

3) Affected person has mental retardation

4) Affected person has furrowed tongue with open mouth

ANS: 1

Q. In dry regions, the leaf size of a tree becomes smaller. It is so to

1) reduce transpiration

2) reduce metabolism maintain natural growth

3) maintain natural growth

4) protect plant from animals

ANS: 1

Q. When we eat something we like, our mouth waters. This is actually not water fluid secreted form

1) salivary glands

2) nasal glands

3) oval epithelium

4) tongue

ANS: 1

Q. Which one among the following groups of items contains only biodegradable items?

1) Wood, Grass, Leather

2) Wood, Grass, Plastic

3) Fruit peels, Lime juice, China clay cup

4) Lime juice, Grass, Polystyrene

ANS: 1

Q. Dog bite can cause rabies. Which among the following other animals can also cause rabies.

1) Bat

2) Donkey

3) Horse

4) Crocodile

ANS: 2

Q. Which of the following diseases are transmitted from one person to another?

1. Aids

2. Cirrhosis

3. Hepatitis

4. Syphilis

Select the correct answer using the code given below:

1) 1, 3, 4 only

2) 1, 2, 3 and 4

3) 1 and 2 only

4) 2, 3 and 4 only

ANS: 1

Q. Due to contraction of eyeball, a longsighted eye can see only

1) father objects which is corrected by using convex lens

2) father objects which is corrected by using concave lens

3) nearer objects which is corrected by using convex lens

4) nearer objects which is corrected by using concave lens

ANS: 1

Biology Quiz Questions with Answers

Q. White blood cells act

1) as a defence against infection

2) as source of energy

3) for clotting blood

4) as a medium for oxygen transport from lung to tissues

ANS: 1

Q. Insects that can transmit diseases to humans are referred to as

1) Vectors

2) Carriers

3) Reservoirs

4) Incubators

ANS: 1

Q. Which one among the following statements about stomach is not correct?

1) Stomach acts as a temporary reservoir

2) Stomach mixes food with gastric juice

3) Stomach secretes lipase and amylase in gastric juice

4) Rate of stomach emptying depends on the type of food

ANS: 3

Q. Which one of the following organs break fat to produce cholesterol?

1) Intestine

2) Liver

3) Lungs

4) Kidneys

ANS: 2

Q. Which one among the following statements regarding cell is not correct?

1) Shape and size of cells are related to specific function

2) Some cells have changing shapes

3) Each cell has its own capacity to perform

4) Same type of cells are present in all body tissues

ANS: 4

Q. Which of the following is not a fruit?

1) Mustard

2) Orange

3) Pear

4) Apple

ANS: 1

Q. Flu is caused by a –

1) Bacteria

2) Virus

3) Fungus

4) None of these

ANS: 2

Q. Which of the following instruments is normally used by medical professionals?

1) Stroboscope

2) Ammeter

3) Photometer

4) Stethoscope

ANS: 4

Q. Which one among the following will be absorbed fastest through the wall of digestive system?

1) DDT taken as a poison

2) Raw alcohol taken as a drink

3) Ice cream as a dessert

4) Black coffee as a hot beverage

ANS: 1

Q. One of the occupational health hazards commonly faced by the workers of ceramics, pottery and glass industry is –

1) silicosis

2) stone formation in gall bladder

3) melanoma

4) stone formation in kidney

ANS: 1

Q. It has been observed that astronauts lose substantial quantity of calcium through urine during space flight. This is due to –

1) microgravity

2) hypergravity

3) intake of dehydrated food tablet

4) low temperature in cosmos

ANS: 1

Q. If we sprinkle common salt on an earthworm, it die due to?

1) osmotic shock

2) respiratory failure

3) toxic effect of salt

4) closure of pores of skin

ANS: 1

Biology Quiz Questions with Answers

Q. Cutting and peeling of onions brings tears to the eyes because of the presence of –

1) Sulphur in the cell

2) Carbon in the cell

3) Fat in the cell

4) Aminoacid in the cell

ANS: 1

Q. The anti-malarial drug Quinine is made from a plant. The plant is –

1) Neem

2) Eucalyptus

3) Cinnamon

4) Cinchona

ANS: 4

Q. The cat can survive fall from height much more than human or any other animal. It is because the cat-

1) also gets injury equally with other animal but has tremendous endurance, body resistance and speedy recovery

2) can immediately adjust itself to land on all four paws and bend the legs to absorb the impact of falling

3) has thick and elastic skin

4) has elastic bones

ANS: 1

Q. Development of Goitre (enlarged thyroid gland) is mainly due to deficiency of –

1) Sodium

2) Iodine

3) Calcium

4) Iron

 ANS: 2

Q. To suspect HIV/AIDS in a young individual, which one among the following symptoms is mostly associated with?

1) Severe persistent headache

2) Long standing jaundice and chronic liver disease

3) Severe anaemia

4) Chronic diarrhoea

ANS: 1

Q. Which one of the following is not a mammal?

1) Shark

2) Dolphin

3) Seal

4) Whale

ANS: 1

Q. Which of the following organelles is called ‘Atom bombs’?

1) Lysosome

2) Nucleolus

3) Golgi bodies

4) Microtubules

ANS: 1

Q. Which of the following vertebrates lack exoskeleton?

1) Aves

2) Mammalia

3) Amphibia

4) Chondrichthyes

ANS: 4

Q. The contractile proteins in a muscle are

1) Myosin and Troponin

2) Actin and Myosin

3) Actin and Tropomyosin

4) Troponin and Tropomyosin

ANS: 2

Q. Hypertension is the term used for

1) decrease in heart rate

2) decrease in blood pressure

3) increase in blood pressure

4) increase in heart rate

ANS: 3

Biology Quiz Questions with Answers

Q. From the bark of which plant is quinine extracted?

1) Neem

2) Cedar

3) Eucalyptus

4) Cinchona

ANS: 4

Q. ‘Biosphere Reserve Project’ is aimed at protecting

1) Environment

2) Cattle population

3) Flora and Fauna

4) Human beings from pollution

ANS: 3

Q. ‘Palak leaves’ are rich in

1) Iron

2) Vitamin A

3) Cystine

4) Carotene

ANS: 1

Q. Malaria is a disease which affects

1) Spleen

2) Lungs

3) Liver

4) Intestine

ANS: 3

Q. Pepsin, a digestive enzyme, is produced in the

1) Kidney

2) Liver

3) Stomach

4) Small intestine

ANS: 3

Q. Leukaemia is a type of cancer in which there is an abnormal increase in the number of

1) Bone cells

2) Red blood cells

3) Platelets

4) White blood cells

ANS: 4

Q. Red blood corpuscles have life of —

1) 3-4 days

2) 4 weeks

3) 4 months

4) 12 months

ANS: 3

Q. Giant Panda is found in —

1) Nepal

2) Bhutan

3) India

4) China

ANS: 4

Q. Bile is produced by —

1) Liver

2) Pancreas

3) Salivary gland

4) Stomach

ANS: 1

Q. Quinine is a ….. resource.                                        

1) Mineral

2) Agricultural

3) Forest

4) None of the above

ANS: 3

Biology Quiz Questions with Answers

Q. Yellow sport occur in –

1) Eye

2) Heart

3) Kidney

4) Ear

ANS: 1

Q. Which one is correctly matched?

1) Vitamin E-Pellagra

2) Vitamin C-Scurvey

3) Vitamin A—Beri Beri

4) Vitamin D-Anaemia

ANS: 2

Q. Which of the following has the highest pH?

1) Gastric juice

2) Bile in the gall bladder

3) Pancreatic juice

4) Saliva

ANS: 3

Q. Which of the following diseases are / is caused by bacteria?

1. Leprosy

2. Plague

3. Mumps

4. Polio

Select the correct answer using the code given below :

1) 1 and 3 are correct

2) 1 and 2 are correct

3) 1, 3 and 4 are correct

4) All are correct

ANS: 2

Q. Which of the following are required for the formation of bones and teeth?

1) Sodium and Calcium

2) Sodium and Potassium

3) Iron and Calcium

4) Calcium and Phosphorus

ANS: 4

Q. Which one of the following is not a plant hormone?

1) Cytokinin

2) Ethylene

3) Gibberellin

4) Insulin

ANS: 4

Q. CT Scan is done by using –

1) Infra-red rays

2) Visible light

3) Ultrasonic waves

4) X-rays

ANS: 4

Q. The liver disease Hepatitis-B is caused by –

1) DNA Virus

2) Bacterium

3) Platyhelminth

4) Hepatitis B virus

ANS: 4

Q. Why does a foul smell emanate from some ponds, tanks, etc.?

1) Pesticides and other organic chemicals reach the water body and kill off fishes, etc., living therein, causing the foul smell

2) Fertilizers used in farming reach the water body and give rise to excessive growth of aqueous plants. When these plants die, excessive growth of aqueous plants. When these plants die, excessive quantities of organic matter are collected, depleting dissolved oxygen and causing foul smell

3) Household wastes contain small quantities of mercury, cadmium, copper, zinc, etc., which pollute the water bodies, causing the death of fishes and other aquatic organisms and leading to foul smell

4) None of the above

ANS: 2

Biology Quiz Questions with Answers

Q. Synthetic rubbers are made by polymerisation of

1.Chloroprene

2.Styrene butadiene mixture

3.Isobutylene

Select the correct answer using the above codes:

1) 1 and 3

2) 2 only

3) 1,2 and 3

4) 3 only

ANS: 3

Q. Wuchereria bancrofti is a parasite related to:

1) Certain forms of malaria

2) Gingivitis

3) Lymphatic filariasis

4) Kala-azar

ANS: 3

Q. Which of the following is NOT a viral disease?

1) Japanese encephalitis

2) Hepatitis

3) Chikungunya

4) Elephantiasis

ANS: 4

Q. Formic acid is produced by –

1) White ants

2) Cockroaches

3) Red ants

4) Mosquitoes

ANS: 3

Q. A contemporary of Charles Darwin who came to the same conclusion in the matter of organic evolution was –

1) Jean Baptist Lamarck

2) Thomas Fluxley

3) Alfred Russel Wallace

4) Franklin Benjamin

ANS: 3

Q. Chemical decomposition of an organic compound by water is called as –

1) Hydrogenation

2) Hydration

3) Hydrolysis

4) All of these

ANS: 3

Q. Which of the following pairs is not correctly matched?

1) Vitamin B – Pyridoxine

2) Vitamin C – Ascorbic acid

3) Vitamin E – Alphatocopherol

4) Vitamin D – Sunshine

ANS: 4

Q. Which one of the following Himalayan vegetation species is found between the altitudes of 1800 to 2600 metres ?

1) Saal

2) Chir

3) Spruce

4) Deodar

ANS: 3

Q. AIDS is caused by a virus whose genetic material is –

1) single stranded circular DNA

2) double stranded DNA

3) single stranded RNA

4) double stranded RNA

ANS: 3

Q. Which one of the following is an organelle that is not found in prokaryotic cells ?

1) Cell wall

2) Mitochondria

3) Plasma membrane

4) Ribosome

ANS: 2

Q. Which one of the following parts of body does not take part in the process of breathing ?

1) Bronchi

2) Bowman’s capsule

3) Diaphragm

4) Trachea

ANS: 2

Q. Which one of the following statements about classification of plants is correct ?

1) Thallophytes have well differentiated body design

2) Funaria is a fungus

3) All Pteridophytes are Phanerogams

4) Vascular system is not found among Bryophytes

ANS: 4

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