Stomata of a plant open due to
A. influx of hydrogen ions
B. influx of calcium ions
C. influx of potassium ions
D. efflux of potassium ions

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1 Answers

Correct Answer - C
Accumuulation of `K^(+)` ions in the guard cells during the day time is responsible for migration of water molecules from subsidiary cells to guard cells. This increases turgidity of guard ceils and thus stomata open.

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