Question

What is stomatal apparatus? List its role in respiration.

Answer 1

Stomata are the tiny pores present on the surface of the leaves. Stomata, along with the surrounding cells, form the stomatal apparatus. It comprises stomatal aperture or stoma, guard cells, subsidiary cells and epidermal cells.

Role of stomata in respiration:
Stomata trap air and help in the exchange of gases inside the plant cells. The large intercellular spaces in the leaves help in the easy exchange of gases by diffusion.