Multiple choice

Conversion of starch to organic acid is essential for

  1. stomatal closure

  2. stomatal growth

  3. stomatal opening

  4. stomatal apoptosis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The synthesis of organic acids from starch in guard cells is a key step in stomatal opening. It leads to an influx of potassium ions and water, increasing the turgidity of the guard cells.

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