The carbon dioxide acceptor in the Calvin-Benson cycle is A)phosphoglycerate (PGA). B)ribulose bisphosphate (RuBP). C)phosphoglyceraldehyde (PGAL). D)O₂. E)NADP⁺.

Question

Quizplus · Accepted Answer

Ribulose bisphosphate (RuBP) serves as the carbon dioxide acceptor in the Calvin-Benson cycle. It combines with carbon dioxide to form an unstable six-carbon intermediate which quickly breaks down into two molecules of 3-phosphoglycerate (PGA).

The Carbon Dioxide Acceptor in the Calvin-Benson Cycle Is