What happens during the regeneration stage of the Calvin cycle light independent reactions?

Question

A. Oxygen is produced through this process
B. The enzyme rubisco attaches CO2 to RuDP causing the formation of molecules of 3-phosphoglycerate
C. 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)
D. The remaining G3P molecules that have not exited the cycle are used to reform RuBP through a series of chemical reactions so that the Calvin cycle can continue

Answer 1

During the regeneration stage of the Calvin cycle (light-independent reactions), the correct option is:

D. The remaining G3P molecules that have not exited the cycle are used to reform RuBP through a series of chemical reactions so that the Calvin cycle can continue.

In this phase of the cycle, some molecules of glyceraldehyde-3-phosphate (G3P) are utilized to regenerate ribulose bisphosphate (RuBP), allowing the cycle to continue and enabling the fixation of carbon dioxide in subsequent rounds.