Carbon dioxide and ribulose 1,5-bisphosphate react to form 3-phosphoglycerate

NADPH and 1,3 bisphosphoglycerate react to form glyceraldehyde-3-phosphate

Fructose-6-phosphate becomes ribulose 5-phosphate

ATP reacts with ribulose 5-phosphate to become ribulose 1,5-bisphosphate

2 ATP molecules react with 3-phosphoglycerate to form 1,3-bisphosphoglycerate