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Biology Quiz- 5

1 Insects that can transmit diseases to human are referred to as -

(a) carriers

(b) reservoirs

(d) incubators

Correct! Wrong!

Answer:- (c)

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

(a) proteins in blood

(b) platelets in plasma

(d) RBC and WBC in blood

Correct! Wrong!

Answer:- (d)

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

(a) birds from reptiles

(b) mammals from reptiles

(d) mammals from birds

Correct! Wrong!

Answer:- (a)

4. Which one among the following statements is correct ?

(a) All proteins are enzymes

(b) All enzymes are proteins

(d) None of the proteins is enzyme

Correct! Wrong!

Answer:- (b)

5. The ultimate cause of water movement in a plant stem against gravity is -

(a) osmosis

(b) transpiration

(d) diffusion

Correct! Wrong!

Answer:- (b)

6. Which one among the following animal tissues transport hormones and heat and maintains water balance ?

(a) Connective tissue

(b) Muscular tissue

(d) Nervous tissue

Correct! Wrong!

Answer:- (c)

7. Cattle are capable of digesting cellulose present in the grass and/or fodder that they eat. This ability is attributed to the -

(a) presence of cellulose degrading bacteria in the rumen

(b) production of cellulose by the cattle rumen

(d) prolonged retention of cellulose in the rumen

Correct! Wrong!

Answer:- (a)

8. Why are pregnant women recommended substantial intake of green leafy vegetables in their diet, especially in the 1st trimester ?

(a) They are a rich source of chlorophyll

(b) They are a rich source of lecithin

(d) They are a rich source of essential fatty acids required for cell anabolism

Correct! Wrong!

Answer:- (c)

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

(a) Black coffee as a hot beverage

(b) DDT taken as a poison

(d) Ice-cream as a desert

Correct! Wrong!

Answer:- (c)

10. Human body's main organ of balance is located in -

(a) inner part of ear

(b) middle part of ear

(d) top part of vertebral column

Correct! Wrong!

Answer:- (a)

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