In the C3 pathway, the conversion of 3-phosphoglyceric acid to 1,3-bisphosphoglyceric acid involves:
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Correct answer: Phosphorylation using ATP
Before reduction, each molecule of 3-PGA is phosphorylated by ATP to form 1,3-bisphosphoglyceric acid. This prepares the molecule for the subsequent reduction by NADPH.
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More Dark Reactions: Calvin Cycle and C3 Pathway questions
- Which of the following is the primary CO2 acceptor molecule in the C3 pathway (Calvin Cycle)?
- The first stable product of the Calvin cycle in C3 plants is a:
- The Calvin cycle proceeds in three distinct stages. What is the correct chronological order of these stages?
- How many molecules of ATP and NADPH are required for every molecule of CO2 fixed during the reduction step of the Calvin cycle?
- To produce one molecule of glucose, how many 'turns' of the Calvin cycle are required?
- Regeneration of one molecule of RuBP requires the expenditure of how many ATP molecules?