Assertion :The folding or rolling of leaves of hydromantic plants are controlled by bull form cells. Reason: The loss of water through transcription by bull form cells is slower than that by other epidermal cells.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Bulliform cells are large bubble shaped cells present in groups in the epidermal cells that controls the rate of water loss by transpiration by curling or folding the leaves.
So, the correct option is A.

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