Carbon fixation is the process by which carbon atoms from carbon dioxide are incorporated into an organic molecule, typically through the Calvin cycle in photosynthetic organisms or through other pathways in non-photosynthetic organisms. It does not provide the cell with NADPH or ATP, and it occurs during the dark reactions (Calvin cycle) rather than the light reactions.

Solved

Carbon Fixation

Question 61

Multiple Choice

Carbon fixation

A) provides the cell with a supply of NADPH molecules.
B) occurs when carbon atoms from CO2 are incorporated into an organic molecule.
C) supplies the cell with ATP.
D) occurs during the light reactions.

Correct Answer: