Into which three basic stages are the light-independent reactions organised?
AFixation, reduction and regeneration
BAbsorption, oxidation and reduction
CFixation, oxidation and respiration
DExcitation, reduction and transport
Answer & Solution
Correct answer: A. Fixation, reduction and regeneration
1. The light-independent reactions of the Calvin cycle have three basic stages.
2. These are fixation, reduction and regeneration, in that order.
3. Fixation incorporates carbon dioxide into an organic molecule.
4. Regeneration rebuilds the starting acceptor so the cycle can run again.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.3 Using Light Energy to Make Organic Molecules_
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