Question

how guardcells of stomata gets swell up and then got closure

Answer 1

Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. ... Notice that in figure A the guard cells are turgid, or swollen, and the stomatal opening is large. This turgidity is caused by the accumulation of K+ (potassium ions) in the guard cells.

Answer 2

HEYAAAA

During transpiration the movement of potassium ions in and out of the guard cells causes the opening and closing of stomata. ... Due to this the water potential in the guard cells decreases and water moves inside the guard cells causing them to swell up and become turgid which in turn causes the opening of stomata pores.

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