Question

How is guard cell helping in the closing and opening of stomata?

Answer 1

Answer:

When the guard cells swell up , they close the stomata and when they shrink , they open the stomata.

Answer 2

Explanation:

the guard cell has a thick inner wall and thin outer wall. When the guard cells become turgid the guard cell closes the stomata and when the guard cells become flaccid they open the stomata.