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One glucose molecule undergoes glycolysis, which breaks it down into two molecules of pyruvate. Each pyruvate then enters the Krebs cycle (or citric acid cycle), where it is fully oxidized. Since each glucose results in two pyruvate molecules, two cycles of the Krebs cycle occur per glucose molecule, leading to the production of CO2 as a byproduct in each cycle. Therefore, a total of six CO2 molecules are generated from one glucose molecule after two Krebs cycles.

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2mo ago

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What are the consumption of glucose in Krebs cycle?

The Krebs cycle runs twice for each molecule of glucose consumed.


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In a complete Krebs Cycle, 24 ATP are produced. Every glucose molecule produces 2 ATP, and there are 12 glucose molecules.


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The Krebs cycle produces a total of 2 ATP molecules per glucose molecule.


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