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Role of NPK

Stomata will ...

Question

Stomata will open, if there is an accumulation of the following element in the guard cells

A

Magnesium

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B

Zinc

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C

Potassium

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D

Iron

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Solution

The correct option is A Potassium
The opening and closure of the stomatal pore depend on the turgor pressure of the guard cells which is controlled by the movement of ions and sugars through the guard cells. Potassium and chloride ions are the most absorbed and the increase in their accumulation leads to stomatal opening.
Therefore, the correct answer is option C.

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Q. 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

Q. Which ion is accumulated in the guard cells before opening of stomata?

Q. Which of the following statement is correct regarding opening and closing of stomata?
(i) stomata opens when guard cells are turgid.
(ii) stomata closes when guard cells are turgid.
(iii) stomata opens when guard cells are flaccid.
(iv) stomata closes when guard cells are flaccid.

Q. Before opening of stomata, accumulation of which of the following ion is seen?

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