which part of chloroplasts are calvin cycle enzymes located
Stages of Calvin Cycle. The stages of Calvin Cycle occurs in the stroma of chloroplasts, the photosynthetic organelles. Three stages include: 1) Two molecules of 3-phosphoglycerate formed by fixation of carbon dioxide by ribulose 1,5-bisphosphate. 2) Hexose sugars formed by the reduction of 3-phosphoglycerate.