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

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Quizplus · Accepted Answer

Carbon fixation refers to the process by which carbon atoms from inorganic carbon sources, such as CO2, are incorporated into organic molecules. This process is a key step in photosynthesis and is carried out by the enzyme Rubisco in the Calvin cycle. The other choices mentioned are not directly related to carbon fixation.

Carbon Fixation