WAEC Biology Past Questions & Answers - Page 81

401.

By what process is starch converted into maltose?

A.

Hydrolysis

B.

Condensation

C.

Translocation

D.

Photosynthesis

Correct answer is A

Carbohydrates are broken down into their component sugars by hydrolysis. This type of hydrolysis is called Saccharification.

402.

One major difference between plant and animal nutrition is the ability of plants to synthesize

A.

Food for plants and animals

B.

Water for plants

C.

Water for animals

D.

Food for plants only

Correct answer is A

The food produced by plants serve as food both for the plants and animals (herbivores and in extension, all animals).

403.

The source of energy required by plants during food production is

A.

Photosynthesis

B.

Chlorophyll

C.

Sunlight

D.

Microorganisms

Correct answer is C

The food production process (photosynthesis) makes use of the energy of light for the process.

404.

In the diagram above, the larva is also known as

A.

Nymph

B.

Caterpillar

C.

Maggot

D.

Chrysalis

Correct answer is B

The diagram is the life cycle of a butterfly whose larva is called caterpillar.

405.

The diagram above is an illustration of the life cycle of an insect. The adult fly in this cycle is called

A.

Housefly

B.

Butterfly

C.

Cockroach

D.

Mosquito

Correct answer is B

From the diagram, the larva is a caterpillar, hence, the adult is called a Butterfly.