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Question

The metal ion involved in the stomatal regulation is or Stomata will open, if there is accumulation of the following elements in the guards cells

A
Iron
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B
Magnesium
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C
Zinc
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D
Potassium
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Solution

The correct option is D Potassium
Potassium ions movement into and out of guard cells is related to the turgidity and consequent opening and closing of stomatal pore.

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