Fructose- 2ADP NAD± .6-diphosphate NADH 2ATP ADP 3-Phospho- glyceraldehyde 1,3-Diphospho- Glucose glyceric acid NAD+ 3-Phospho- glyceric acid NADH ADP ADP 2-Phospho- glyceric acid ATP Phosphoenol pyruvic acid FIGURE 5-11 Glycolysis.Glucose is phos- phorylated in two steps and raised to Pyruvic acid a higher energy level.High-energy fructose-1,6-diphosphate is split into ADP triose phosphates that are oxidized exergonically to pyruvic acid,yield- ing ATP and NADH