There are small openings on the lower surface of the leaves. These pores are called stomata. These openings are surrounded by guard cells.
Functions of stomata:
- It helps in the transpiration of water, i. e., the loss of excess water from the plant.
- Loss of water from the stomata creates an upward pull, i.e., suction pull which helps in absorption of water from the roots.
- They help in exchange of gases.
