The ATP generated by a photosynthetic electron transport chain can be used in the _____ step(s) of the Calvin cycle.
A)carboxylation
B)reduction
C)regeneration
D)reduction and regeneration
E)carboxylation, reduction, and regeneration

Question

Quizplus · Accepted Answer

The ATP generated by the photosynthetic electron transport chain can be used in both the reduction and regeneration steps of the Calvin cycle. The reduction step involves using ATP to add electrons to the carbon-containing molecules in the cycle, while the regeneration step involves using ATP to convert the remaining molecules back into the starting molecule for the cycle. Therefore, choice D (reduction and regeneration) is the best answer.

The ATP Generated by a Photosynthetic Electron Transport Chain Can