Photosynthesis Begins to Decline When Leaves Wilt Because

Question

Photosynthesis begins to decline when leaves wilt because
A)chloroplasts within wilted leaves are incapable of photosynthesis.
B)CO₂ accumulates in the leaves and inhibits the enzymes needed for photosynthesis.
C)there is insufficient water for photolysis during the light reactions.
D)stomata close, restricting CO₂ entry into the leaf.
E)wilted leaves cannot absorb the red and blue wavelengths of light.

Accepted Answer

When leaves wilt, stomata close to prevent water loss, but this also restricts CO₂ entry into the leaf. Without enough CO₂, the light-independent reactions of photosynthesis cannot occur, causing a decline in photosynthesis.