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Question
Which of the following get accumulated in the vacuoles of guard cells during stomatal opening?
Which of the following get accumulated in the vacuoles of guard cells during stomatal opening?
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Solution
The correct option is D Malate, potassium and chloride ions
Stomatal opening is brought about by increasing the turgidity of the guard cells. And the turgor pressure in these cells increases due to increase in the concentration of different ions, including potassium ions, which are transported inside the cell through the exchange of protons. Chloride is also taken up into the cell. The protons that are exchanged for potassium are formed due to the accumulation of malic acid, which gives away a proton to form malate and hydrogen ion.
Stomatal opening is brought about by increasing the turgidity of the guard cells. And the turgor pressure in these cells increases due to increase in the concentration of different ions, including potassium ions, which are transported inside the cell through the exchange of protons. Chloride is also taken up into the cell. The protons that are exchanged for potassium are formed due to the accumulation of malic acid, which gives away a proton to form malate and hydrogen ion.
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