Plant Growth and Development

The seed is protected by an outer covering called:

• food store

• embryo

• seed coat

• germination

It is the development of a seed into a plant.

• seed dispersal

• germination

• habitat

Which is NOT part of a seed?

• seed coat

• embryo

• pollen

• food store

Where does the seed get its energy from?

• Food store

• sunlight

• embryo

• animals

Which word identifies letter A?

• food store

• seed coat

• embryo

Which word identifies letter B?

• scar

• seed coat

• embryo

A sigmoid growth curve is characteristic of –

• Bacteria growing in culture medium

• Organisms growing in natural habitat

• All cells, tissue and organs

• All

What is the function of seed coat?

• it covers and protects the seed

• it is a place where photosynthesis happen

• it stores food

• it can develop into young plant

How do seeds get energy to germinate?

• It gets energy from the sunlight.

• It gets energy from another plant,

• It gets energy from the food stored in the soil.

• It gets energy from the food stored in the seed.

The rate of growth is highest in –

• Lag phase

• Log phase

• Steady phase

• None