In guard cells when sugar is converted into starch, the stomatal pore:
Correct answer: A. Closes completely
- A. Closes completely
- B. Opens partially
- C. Opens fully
- D. Remains unchanged
Explanation
When sugar is converted into starch in guard cells, the stomatal pore closes completely. This process occurs during the night when photosynthesis cannot take place, and the conversion of sugar to starch leads to a decrease in the osmotic potential in the guard cells. As a result, water moves out of the guard cells, causing them to lose turgidity and close the stomatal pore. So correct option is A.
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