Question

what is the function of guard cells​

Answer 1

◆function of guard cells:-

They help to regulate the rate of transpiration by opening and closing the stomata.

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Answer 2

Water moves in and out from the guard cells. When the guard cells absorb water from the neighbouring cells, they swell, and the stomata opens up. This helps water vapour to escape from the leaves. When the water is lost by the guard cells, they shrink, and the stomata get closed.