The light reactions of photosynthesis supply the Calvin cycle with

Question

Quizplus · Accepted Answer

The light reactions of photosynthesis convert light energy into chemical energy in the form of ATP and NADPH, which are then used in the Calvin cycle to fix CO₂ into organic molecules. Therefore, the Calvin cycle is supplied with ATP and NADPH from the light reactions. Choice A is incorrect because light energy is used in the light reactions, not supplied to the Calvin cycle. Choice B is incorrect because CO₂ is fixed in the Calvin cycle, not supplied to it, and ATP is produced in the light reactions, not supplied to the Calvin cycle. Choice C is incorrect because H₂O is split in the light reactions to provide electrons for NADPH synthesis, and NADPH is used in the Calvin cycle, but neither H₂O nor NADPH is supplied directly to the Calvin cycle.

The Light Reactions of Photosynthesis Supply the Calvin Cycle with