Question: what happens during the carbon fixation step of the calvin cycle quizlet?
Answer: What happens during the CARBON FIXATION phase of the Calvin Cycle? Carbon from CO2 is added to a 5-carbon molecule (ribulose-1,5- bisphosphate or RuBP). The six-carbon molecule that is created is immediately split into 2 3-carbon molecules (3-phosphglycerate). ... Energy from ATP is used to rebuild RuBP.