Photosynthesis ceases when leaves wilt, mainly because
A) the chlorophyll of wilting leaves breaks down.
B) flaccid mesophyll cells are incapable of photosynthesis.
C) stomata close, preventing CO2 from entering the leaf.
D) photolysis, the water-splitting step of photosynthesis, cannot occur when there is a water deficiency.
E) accumulation of CO2 in the leaf inhibits enzymes.
Correct Answer:
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