Question

How do the guard cells regulate opening and closing of stomatal pores?​

Answer 1

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.

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Answer 2

Answer:

when water flows into the guard cell it opens stomata to get the swelled water. when it looses water the stomata will close automatically otherwise the water swelled in will get evaporated. we can also take (touch me not) plant it will also do like the same...