N the process of carbon fixation, three molecules of rubp combine with three molecules of co2 to produce three six-carbon molecules, which are then split to produce 12 molecules of 3-phosphoglycerate.

N the process of carbon fixation, three molecules of rubp combine with three molecules of co2 to produce three six-carbon molecules, which are then split to produce 12 molecules of 3-phosphoglycerate. after phosphorylation and reduction produce 12 glyceraldehyde 3-phosphate (g3p), what more needs to happen to complete the calvin cycle?