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Question

What are sunken stomata? Explain with an example.


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Solution

Stomata:

  1. Stomata are tiny pores mainly present on the lower surface of the leaf.
  2. It is surrounded by guard cells.
  3. Stomata help in gas exchange and prevents loss of water during transpiration.

Sunken stomata:

  1. The term "sunk" refers to something that is hidden.
  2. Sunken stomata are not directly visible to the leaf surface.
  3. They are found beneath the epidermis and beneath the leaves of plants.
  4. Xerophytes have sunken stomata to prevent water loss from the plant.
  5. They are often enclosed and partially covered by cuticles and are sunken within the leaf rather than on the surface.
  6. Plants with sunken stomata include Pine, Nerium, Acacia, etc.

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