Biology Part 2 Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Biology. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Who among the following has invented the influenza (flu) vaccine?

A - Salk

B - Khorana

C - Mittle

D - None of the above

Answer : A

Explanation

Jonas Salk and Thomas Francis have invented the first vaccine of flu viruses.

Answer : B

Explanation

N/A

Q 3 - ‘Late Blight’ is the disease that affects …

A - Onion

B - Carrot

C - Potato

D - Brinjal

Answer : C

Explanation

Late Blight is also known as potato blight.

Q 4 - Consider the following statements:

1. The pulmonary artery is the only artery that carries impure blood to the lungs from the heart.

2. The pulmonary vein is the only vein that carries pure blood again to the heart from the lung.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

N/A

Q 5 - The scientific study of annual rings of a tree is known as …

A - Acarology

B - Dendrochronology

C - Dendrology

D - Horticulture

Answer : B

Explanation

Dendrochronology helps in dating the tree.

Q 6 - Which among the following lichen grow on the rocks?

A - Crustose

B - Sexicoles

C - Sextiles

D - Foliose

Answer : B

Explanation

A saxicolous lichen normally grow on a barren rock.

Q 7 - The temperature and humidity of the air we breathe is adjusted in ……

A - Sinuses

B - Nasal cavities

C - Pharynx

D - Larynx

Answer : B

Explanation

N/A

Q 8 - Consider the following statements:

1. Salivary glands produce saliva that helps to lubricate the food for easier swallowing.

2. Saliva contains antibacterial agents and the enzyme amylase that break down starch.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

N/A

Q 9 - Consider the following statements:

1. The bones that enclose the brain and support the face and teeth is known as skull.

2. The backbone is made of cartilage.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : A

Explanation

The backbone is made of vertebrae.

Q 10 - Consider the following statements:

1. Haemoglobin molecules in the red blood cells transport O2

2. Animal cells take up CO2 and release O2

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : A

Explanation

Animal cells take up O2 and release CO2.

Q 11 - If a husband has A blood group and his wife has O blood group, then the possibility of their son’s blood group is …

A - O

B - B

C - AB

D - B, AB of O

Answer : A

Explanation

N/A

Q 12 - Match the following list:

Cell organellesPhysiological phenomena

a) Mitochondria1. Photosynthesis

b) Chloroplast2. Transpiration

c) Stomata3. Respiration

d) Cell wall4. Osmosis

Choose the correct answer from the codes given below:

abcd

A - 1342

B - 3124

C - 1324

D - 3142

Answer : B

Explanation

N/A

Q 13 - Which among the following is the cause of water movement in a plant stem against gravity?

A - Osmosis

B - Transpiration

C - Photosynthesis

D - Diffusion

Answer : B

Explanation

Transpiration is the main driver of water movement in the plant (through xylem).

Q 14 - Adenine is the chemical name of …

A - Vitamin B4

B - Vitamin B8

C - Vitamin F

D - Vitamin G

Answer : A

Explanation

N/A

Q 15 - Which among the following birds can fly backward?

A - Eagle

B - Hummingbird

C - Crow

D - Nightingale

Answer : B

Explanation

Hummingbirds are small and colorful birds with iridescent feathers.

Q 16 - Which among the following is comparatively less harmful to the environment and does not have global impact?

A - CFC

B - CO and CO2

C - HCFC

D - Methane

Answer : D

Explanation

The chemical formula of methane is CH4.

Q 17 - The bacteria which fix nitrogen fixation in the leguminous plant is known as

A - Spirochaetes

B - Chloroflexi

C - Rizhobium

D - Sudomonas

Answer : C

Explanation

Rhizobia are the soil bacteria that fix nitrogen.

Answer : C

Explanation

It is lower knee muscle.

Q 19 - The symptoms of scurvy are …

1. Swelling and bleeding of gums

2. Dry and scaly skin

3. Decreased resistance to cold

4. Hair loss

Choose the correct answer from the codes given below:

A - 1 and 3

B - 2 and 4

C - 1, 3 and 4

D - 1, 2 and 3

Answer : A

Explanation

N/A

Q 20 - Consider the following statements:

1. The thymus gland is comparatively large in a new-born baby.

2. At puberty, the thymus begins to shrink and becomes superfluous in adults.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

Thymus gland helps in producing lymphocytes that protect the baby from infections.

biology_part2_online_quiz.htm
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