In photosynthesis, the reduction of 3-phosphoglycerate to form carbohydrate requires:
A)ATP.
B)NADPH.
C)ATP and NADPH.
D)RuBP.
E)rubisco.

Question

Quizplus · Accepted Answer

The reduction of 3-phosphoglycerate to form carbohydrate, which occurs during the Calvin cycle in photosynthesis, requires both ATP and NADPH as sources of energy and electrons. Without both of these molecules, the process cannot proceed. Choice A (ATP) alone cannot provide the reducing power needed for carbohydrate synthesis, while choice B (NADPH) alone cannot provide the ATP needed for the energy-requiring steps of the Calvin cycle. Choices D and E (RuBP and rubisco) are both involved in the first step of the Calvin cycle, but are not directly involved in the reduction of 3-phosphoglycerate to carbohydrate.

In Photosynthesis, the Reduction of 3-Phosphoglycerate to Form Carbohydrate Requires