Calvin cycle Knowledge-Based Download PDF

Questions

1. 1.

   During the reduction stage of the Calvin cycle, what happens to the molecules of 3-phosphoglycerate (3-PGA)?

   • A) They are directly combined with incoming carbon dioxide molecules by the enzyme RuBisCO.
   • B) They are oxidized into ribulose 1,5-bisphosphate (RuBP) through the direct absorption of light energy.
   • C) They are phosphorylated by ATP and reduced by electrons from NADPH to form glyceraldehyde 3-phosphate (G3P).
   • D) They are broken down into molecules of pyruvate to produce ATP through substrate-level phosphorylation.