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Which of these best represents the fixation of a carbon molecule? The reduction of carbohydrates by...

Which of these best represents the fixation of a carbon molecule?

The reduction of carbohydrates by NADPH.

The oxidation of NADPH to form NADP.

The regeneration of RuBP.

The incorporation of CO2 into organic molecules.

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Answer #1

Fixation of carbon means reduction of carbon from its inorganic form CO2 into organic form like sugars etc. It occurs during photosynthesis. RuBP is the enzyme essential for fixation of carbon.

Answer - D

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