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Question

How does stomatal action contribute to the regulation of the plant's temperature?


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Solution

Stomata:

They are tiny pores that are present on the surface of the leaf and are responsible for the exchange of gases.

Contribution of stomatal action to the regulation of plant's temperature:

  1. This occurs through the process of transpiration.
  2. An increase in temperature causes water to be removed from the plant through the stomata.
  3. This water evaporates in form of water vapour.
  4. It uses latent heat energy and thereby on evaporation, takes the heat along with it.
  5. Hence, it ends up cooling the plant.

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