NEET Biology question

Nyctinasty and seismonasty in plants like bean and touch-me-not (*Mimosa pudica*) are produced due to

(A)Reversible osmotic potential in the cells
(B)Reversible turgor pressure in the cells of their pulviniCorrect
(C)Less pressure potential in the cells
(D)Presence of less turgidity in the cells

Answer: (B)

Solution

Nyctinastic (sleep) and seismonastic (touch-sensitive) leaf movements are produced by rapid, reversible changes in turgor pressure of motor cells located in swollen leaf-base structures

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Question ID VK-127719