Sleep movements in Samanea text{ } saman are | vedclass

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(C) Sleep movements (nyctinasty) in $Samanea 	ext{ } saman$ (Rain tree) are caused by changes in turgor pressure within the motor cells of the pulvin

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$K$

Vedclass · Answer

(C) Sleep movements (nyctinasty) in $Samanea 	ext{ } saman$ (Rain tree) are caused by changes in turgor pressure within the motor cells of the pulvinus.These turgor changes are primarily driven by the rapid flux of potassium ions $(K^+)$ across the plasma membranes of the motor cells.When $K^+$ ions move into the cells, water follows by osmosis, causing the cells to become turgid and the leaves to open.Conversely, when $K^+$ ions move out, water follows, causing the cells to lose turgor and the leaves to fold (sleep movement).Therefore, potassium $(K)$ is the essential element regulating these movements.

Sleep movements in $Samanea \text{ } saman$ are regulated by

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