1,3-Bisphosphoglycerate Glyceraldehyde 3-Phosphate Dehydrogenase Glyceraldehyde 3-Phosphate NADH Pi NAD 1,3-Bisphosphoglycerate 3-Phosphoglycerate ATP Phosphoglycerate Kinase ADP 3-Phosphoglycerate 2-Phosphoglycerate Phosphoglycerate Mutase 2-Phosphoglycerate Phosphoenolpyruvate Enolase Phosphoenolpyruvate Pyruvate ATP Pyruvate Kinase ADP Glucose 2 Pyruvate 4 ATP 2 ATP 2 NADH