The net number of ATP molecules produced per glucose molecule oxidized in the citric acid cycle and oxidative phosphorylation is approximately 36-38 ATP. This includes:1. Glycolysis: 2 ATP net and 2 NADH which can generate 4-6 ATP in oxidative phosphorylation, depending on the shuttle system used to transport electrons into the mitochondria 2. Pyruvate decarboxylation: 2 NADH generating 6 ATP in oxidative phosphorylation 3. Citric acid cycle: 2 ATP, 6 NADH generating 18 ATP in oxidative phosphorylation , and 2 FADH2 generating 4 ATP in oxidative phosphorylation The total ATP yield is approximately 36-38 ATP per glucose molecule, depending on the efficiency of the electron transport chain and the shuttle system used for NADH transport.