In the complete oxidation of glucose, six CO₂ molecules are formed per glucose molecule.The number of CO₂ molecules released by glycolysis is _______, by pyruvate oxidation is _______, and by the citric acid cycle is _______.

Question

Quizplus · Accepted Answer

- Glycolysis only produces 2 ATP molecules and 2 NADH molecules per glucose molecule. No CO2 is released in glycolysis, so the answer is zero for the number of CO2 molecules released. - Pyruvate oxidation produces 2 NADH molecules and 2 CO2 molecules per glucose molecule. No ATP or additional CO2 is produced in this step. - The citric acid cycle produces 2 ATP molecules, 6 NADH molecules, and 2 FADH2 molecules per glucose molecule. It also releases 4 CO2 molecules. Note that each NADH molecule will produce 1 CO₂ molecule upon entering the electron transport chain, while each FADH2 molecule will produce 2 CO₂ molecules. Therefore, the total number of CO₂ molecules produced by the citric acid cycle is: (6 x 1) + (2 x 2) = 10.

In the Complete Oxidation of Glucose, Six CO2 Molecules Are

In the Complete Oxidation of Glucose, Six CO₂ Molecules Are