The macronutrient, ______ is important for the opening and closing of stomata.

manganese

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magnesium

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iron

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potassium

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Solution

The correct option is D potassium
The turgidity of guard cells is due to the accumulation of K+ (potassium ions) in the guard cells. As K+ levels increase in the guard cells, the water potential of the guard cells drops, and water enters the guard cells.

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The macronutrient, _______________ , is important to the operation of stomata.

Which among the following essential element play important role in opening and closing of stomata?

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