The Calvin Cycle and Light-Independent Reactions Quiz

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Questions and Answers

What is the enzyme responsible for catalyzing the fixation of ribulose bisphosphate (RuBP) with carbon dioxide?

  • Phosphoglycerate (PGA)
  • Rubisco (correct)
  • RuBP carboxylase-oxygenase
  • Glyceraldehyde 3-phosphate (G3P)

What are the products of the carbon fixation process in the Calvin Cycle?

  • Ribulose bisphosphate (RuBP)
  • Carbon dioxide (CO2)
  • Glyceraldehyde 3-phosphate (G3P)
  • 2 molecules of phosphoglycerate (PGA) (3C) (correct)

What is the role of ATP in the Calvin Cycle?

  • Donates one phosphate group to PGA (phosphorylation) (correct)
  • Donates 2 electrons to PGA (reduction)
  • Catalyzes the conversion of RuBP to PGA
  • Participates in the carbon fixation process

Which molecule is formed when NADPH donates 2 electrons during the reduction phase of the Calvin Cycle?

<p>Glyceraldehyde 3-phosphate (G3P) (B)</p> Signup and view all the answers

What is the primary function of the 12 G3P molecules produced during the Calvin Cycle?

<p>Regeneration of RuBP (C)</p> Signup and view all the answers

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