Question

what happens during the reduction stage of the calvin cycle (light - independent reactions)? a. energy from atp and electrons from nadph are used to reduce 3 - phosphoglycerate to form g3p molecules (which can be used to form other organic molecules such as glucose). b. the remaining g3p molecules that have not exited the cycle are used to re - form rubp through a series of chemical reactions, so that the calvin cycle can continue. c. oxygen is produced through this process. d. the enzyme rubisco attaches co2 to rubp, causing the formation of molecules of 3 - phosphoglycerate.

Explanation:

In the reduction stage of the Calvin - cycle, energy from ATP and electrons from NADPH are used to reduce 3 - phosphoglycerate to form G3P. Option B describes the regeneration stage, option C is incorrect as oxygen is produced in the light - dependent reactions, and option D describes the carbon - fixation stage.

Answer:

A. Energy from ATP and electrons from NADPH are used to reduce 3 - phosphoglycerate to form G3P molecules (which can be used to form other organic molecules such as glucose).