Arrange the events of opening stomata in corr | vedclass

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Question

(C) The opening of stomata is primarily explained by the active $K^+$ transport theory. The sequence of events for stomatal opening is as follows:$1$.

Vedclass · Accepted Answer

$III, I, IV, VI$

Vedclass · Answer

(C) The opening of stomata is primarily explained by the active $K^+$ transport theory. The sequence of events for stomatal opening is as follows:$1$. $III.$ Rise of potassium ion $(K^+)$ level in guard cells: During the day,$K^+$ ions are actively transported into the guard cells.$2$. $I.$ Lowering of osmotic potential of guard cells: The accumulation of $K^+$ ions increases the solute concentration,thereby lowering the osmotic potential of the guard cells.$3$. $IV.$ Guard cells absorb water from neighbouring epidermal cells: Due to the lower osmotic potential,water enters the guard cells via endosmosis.$4$. $VI.$ Guard cells swell and create a pore between them: The influx of water increases the turgor pressure,causing the guard cells to swell and open the stomatal pore.Therefore,the correct sequence is $III, I, IV, VI$.

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