⇒OPENING OF STOMATA ;-
⇒ Stomata are the tiny pores present on the epidermal surface of the leaves.
⇒ The main function of stomata is the gaseous exchanges between atmosphere and plants.
⇒ The opening and closing of the pores in the stomata is the function of guard cells.
⇒ If the guard cells swell , when the water is on the surface of the leaf results in the opening of the stomata.
⇒Similarly , the pores closes if guard cells shrink.