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how pening and closing of stomata takes place pls explain ..????

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@Others...Good work..Keep posting!

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The opening and closing of stomatal opening is regulated by the guard cells. When water enters the guard cells from the subsidiary cells by osmosis, then the guard cells swell, and the stoma opens. When the water moves out of the guard cells, then it shriks and the pore closes.

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Guard cells regulate the opening and closing of the stomata and this regulation is brought about by the movement of water in and out of the guard cells. When water moves into the guard cells, they become flaccid. This causes the outer walls of cells bulge out and vice-versa.

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