Question

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


Please answer it​

Answer 1

Answer:

They regulates the opening and closing of stomata according to whether it is day or night.

Answer 2

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⭕ Mechanism of opening and closing of stoma :-

⭕ The two guard cells are attached to each other by both the ends (through the margins of outer wall).

⭕ When the guard cells become turgid, it get swell , outer wall bends outwards because it is thin and elastic.✔️✔️

⭕ The inner wall of guard cell is thick and non elastic. It does not bend out.Due to bending of outer wall of guard cells the stomatal aperture opens.

⭕ When the guard cells become flaccid, the tension on the walls is released:- the stomatal aperture closes.❤️

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