NEET 2015 Botany Stomatal Movement MCQ Question with Solution

Which one gives the most valid and recent explanation for stomatal movement?

A

Starch hydrolysis

B

Guard cell photosynthesis

C

Transpiration

D

Potassium influx and efflux

Correct Answer

Option A

Detailed Explanation

Stomatal movement is primarily regulated by the influx and efflux of potassium ions, affecting turgor pressure in guard cells.

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