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Anatomy of Flowering Plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYAnatomy of Flowering Plants2 Marks
Question
What are guard cells? Describe their structure Mention their function.
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Answer

  • The cells which surround the stomatal pore, are called guard cells.
  • In dicots, the guard cells are bean-shaped and in monocots, they are dumb-bell shaped.
  • The wall of the guard cells facing the stoma is thick while the outer wall is thin.
  • The guard cells possess chloroplasts.
  • They regulate the opening and closing of stomata.

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