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Question

Sleep movements in Samanea saman are regulated by

A
N
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B
P
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C
K
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D
Mg
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Solution

The correct option is C K
Samanea saman is a large tropical tree growing as much as 60 m tall, with rough wrinkled bark and developing a symmetrical broad umbrella-shaped crown about 80 m wide, making this species a beautiful choice for a shade tree. Sleep movement or nyctinasty is observed in many leguminous plants such as Albizia, Samanea saman, Cassia etc which is regulated by the potassium ions.
Thus, the correct answer is option C.

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