Question

opening and closing of stomata​

Answer 1

$\huge\mathcal{Answer}$

Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. ... In figure B, the guard cells have lost water, which causes the cells to become flaccid and the stomatal opening to close. This may occur when the plant has lost an excessive amount of water.

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Answer 2

guard cells help to regulate the rate of transpiration by opening and closeing of stomata . guard cells are cells surrounding each stomata . they have lost water which causes the cells to become flaccid and the stomatal opening to close. this may occur when the plant has lost an excessive amount of water . hope its help u ....