The immediate cause of the opening or closing of the stomata is a change in the:
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Correct answer: Turgidity of the guard cells
Stomatal movement is driven by turgor changes in guard cells. When water flows into guard cells, they become turgid and the stomatal pore opens; when they lose water, they become flaccid and the pore closes.
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More Transpiration: Factors and Mechanism questions
- The inner wall of each guard cell (towards the stomatal aperture) is:
- Which orientation of cellulose microfibrils in the cell walls of guard cells facilitates stomatal opening?
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