Life Cycle of Plants

A flowering plant has 3-stage life cycle.

• True

• False

Which of the following are stages in the life cycle of a flowering plant?

• Seed

• Adult plant

• Young plant

• Flowers

• Roots

The diagram shows the life cycle of a flowering plant. Name stage A.

(a)  

The diagram shows the life cycle of a flowering plant. Name stage B.

(a)  

The diagram shows the life cycle of a flowering plant. Name stage C.

(a)  

Refer to the diagram. When the seed undergoes process X, it develops into a young plant.

Name process X.

(a)  

Answer explanation

Germination is a process where the seed develops into a young plant.

A seed will germinate when it has sufficient _____, ______and ______.

• water

• oxygen

• warmth (suitable temperature)

• food

• light

Answer explanation

A seed will germinate when it has sufficient water, oxygen

and warmth (suitable temperature).

A seed does not need light for germination.

The ________ protects the seed from insects, diseases and physical damage.

• seed leaf

• seed coat

• seedling

• roots

• shoots

Answer explanation

The seed coat is an outer layer that protects the seed from insects, diseases and physical damage.

When a seed germinates, the main ____ grows out first.

• seed leaf

• seed coat

• root

• shoot

• leaf

During germination, after the roots are grown, tiny _____ will appear.

• roots

• leaves

• flowers

• seed

• shoot

Answer explanation

When a seed germinates, the main root grows out first. Then the seed coat starts to split and the tiny shoot lengthens and straightens up.