Question

How do the guard cells regulate the opening and closing of stomata​

Answer 1

Answer:

The opening and closing of stomata are controlled by the guard cells. When water flows into the guard cells, they swell up and the curved surface causes the stomata to open. When the guard cells lose water, they shrink and become flaccid and straight thus closing the stomata.

Answer 2

1st ANSWER :—

• The opening and closing of stomata are controlled by the guard cells. When water flows into the guard cells, they swell up and the curved surface causes the stomata to open. When the guard cells lose water, they shrink and become flaccid and straight thus closing the stomata.

OR

2nd ANSWER:—

• The turgor pressure, which is caused by the osmotic flow of water in the guard cells, controls the opening and closing of stomata. ... Guard cells become flaccid as they lose water, causing stomatal closure. Stomata usually open when the leaf is exposed to light and close at night.