PSLE Science Biology Topics 1

Question 1

Which part of a plant absorbs water and minerals from the soil?

Accepted Answer

Roots

Answer

Roots absorb water and mineral salts from the soil through root hairs, which increase the surface area for absorption.

Question 2

What is the main function of the leaf in a plant?

Accepted Answer

To make food through photosynthesis

Answer

Leaves are the main site of photosynthesis, where the plant uses sunlight, water, and carbon dioxide to make food (glucose).

Question 3

Which gas do plants absorb during photosynthesis?

Accepted Answer

Carbon dioxide

Answer

During photosynthesis, plants absorb carbon dioxide from the air and use it along with water and sunlight to produce glucose and oxygen.

Question 4

What is the role of the stem in a plant?

Accepted Answer

To transport water and nutrients

Answer

The stem transports water and minerals from the roots to the leaves, and food from the leaves to other parts of the plant.

Question 5

Which of the following is NOT a characteristic of living things?

Accepted Answer

Rusting

Answer

Rusting is a chemical reaction in metals, not a characteristic of living things. Living things grow, respire, and move.

PSLE Practice Test