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Question

Bulliform or motor cells are present in

A
Dicot stem
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B
Upper epidermis of dicot leaves
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C
Lower epidermis of monocot leaves
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D
Upper epidermis of monocot leaves
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Solution

The correct option is C Upper epidermis of monocot leaves
The large, bubble-shaped epidermal cells that occur on the upper surface of the leaves of monocots are called as bulliform cells. They help in the unfolding of developing leaves. It is involved in the rolling and unrolling of mature leaves in response to alternating wet and dry periods.
Thus, the correct answer is option D.

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