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Question
Kidney-shaped cells that surround the stoma are called guard cells.
Options:
A .  True
B .  False
C .  Hen's egg
D .  Nerve cell
Answer: Option A
:
A
Guard cellsarecellssurrounding each stoma. They help regulate theopening and closing of the stoma. When the guard cells are turgidor swollen,the stomatal opening is large andwhenthe guard cells have lost water or flaccid,the stomatal openingcloses.

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