How do the guard cells regulate opening and closing of stomatal pores? Explain with the help on diagram.

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Solution

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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Similar questions

Q. How do the guard cells regulate opening and closing of stomatal pores?

Q. Assertion: Opening and closing of stomata is controlled by guard cells.
Reason: Shrinking of guard cells results in the opening of stomatal pore.

Q. (a) How do guard cells regulate opening and closing of stomatel pores?
(b) Two similar green plants are kept separately in oxygen free containers, one in dark and the other in continuous light. Which one will live longer? Give reasons.

The opening and closing of the stomatal pores depends upon :
(a) oxygen (b) water in guard cells (c) temperature (d) concentration of $C O_{2}$ in stomata

Guard cells regulate the opening and closing of stomata.

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