Question

Explain the role of stomata in photosynthesis.

Answer 1

Stomata:

1. Stomata are the tiny openings present on the surface of leaves in a plant.
2. The stomatal pores are regulated by guard cells.
3. Guard cells help in opening and closing of the stomatal pore.

Functions/role of stomata:

The primary functions of stomata in a plant are:

Exchange of gases:

1. Closing and opening of stomata help in the exchange of gases between the plant its surrounding.
2. It facilitates the entry of carbon dioxide into the plant and removal of oxygen from the plant.
3. Carbon dioxide that enters the plant through stomata is a primary raw material for photosynthesis.

Transpiration:

1. It also helps in transpiration and also removes excess of water in the form of vapours.
2. Closing of stomata at night prevents eascaping of water through their pores.