IGCSE Biology Paper-2: Specimen Questions with Answers 15 - 17 of 103

Question number: 15

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Question

What is not a function of primary root?

Choices

Choice (4) Response

a.

may store food

b.

absorb water and mineral salts from the soil.

c.

anchor the plant in the soil.

d.

Produce and release pollen grain

Answer

d.

Explanation

Anther, which is the part of flower, has the main function of produce and release pollen grain. Functions of the root can be anchor the plant in the soil. Roots absorb water and mineral salts from the soil and may store food. They form a passageway for water and dissolved substances from the root into the stem and for foods from the stem down into the root.

Question number: 16

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Question

The diagram shows the flow of energy through four organisms in a food chain. Which organism is an Herbivore?

Figure shows transfer of energy through different organism

Figure Shows Transfer of Energy through Different Organism

Figure shows transfer of energy through different organisms in a food chain. Identify herbivore from this.

Choices

Choice (4) Response

a.

Part D

b.

Part C

c.

part B

d.

Part A

Answer

c.

Explanation

Organism B will be herbivore because it consume producer. In given diagram solar energy first consume producer and producer will consume by herbivore.

Question number: 17

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Question

The diagram shows the carbon cycle. Which process produces carbon dioxide by respiration process?

Above figure shows carbon cycle

Above Figure Shows Carbon Cycle

The diagram shows the carbon cycle and its different processes occur in biotic and abiotic environment

Choices

Choice (4) Response

a.

A

b.

B

c.

D

d.

C

Answer

b.

Explanation

Respiration is movement of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction.