Stomata in angiosperms open and close due to

Options

A. Their genetic constitution
B. Effect of hormones
C. Changes of turgor pressure in guard cells
D. The pressure of gases inside the leaves

Answer

C

Explanation

The opening and closing of stomata operates as a result of turgor pressure in the guard cells. When the guard cells become turgid their thin walls get extended and thick walls become slightly concave so that the stomatal aperture opens