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प्रश्न
Opening and closing of stomata is due to ______.
विकल्प
High pressure of gases inside the cells.
Movement of water in and out of the guard cells.
Stimulus of light in the guard cells.
Diffusion of CO2 in and out of the guard cells.
उत्तर
Opening and closing of stomata is due to Movement of water in and out of the guard cells.
Explanation:
They swell up when water enters guard cells due to water movement. The pore at the stomata is now open. The stomata close when they dry out and become flaccid.
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