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Monocot leaves have some specialized cells in the epidermal cells of their leaves called bulliform cells (motor cells) which lose or gain turgidity due to which their leaves show coiling and uncoiling.

1. Monocot leaves have specialized cells called bulliform cells.
2. Bulliform cells are responsible for coiling and uncoiling of leaves.
3. Bulliform cells lose or gain turgidity.
4. Bulliform cells are found in monocot leaves.

Correct answer: Bulliform cells are responsible for coiling and uncoiling of leaves.

Solution

Bulliform cells are motor cells in monocot leaves that change turgidity. This change causes the leaf to roll or unroll, so the statement about their role in coiling and uncoiling is the best answer.

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