Photosynthesis Ceases When Leaves Wilt, Mainly Because

question 63

Multiple Choice

Photosynthesis ceases when leaves wilt, mainly because

• A) the chlorophyll in wilting leaves is degraded.
• 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.

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