The Krebs cycle runs twice to break down one molecule of glucose.
The Krebs cycle runs twice for each molecule of glucose consumed.
The Krebs cycle runs twice to break down one molecule of glucose.
In a complete Krebs Cycle, 24 ATP are produced. Every glucose molecule produces 2 ATP, and there are 12 glucose molecules.
twice
The Krebs cycle produces a total of 2 ATP molecules per glucose molecule.
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A single glucose molecule is able to drive the Krebs cycle 2 times. The Krebs Cycle is the series of chemical reactions that take place to provide all aerobic organisms with the ability to make energy.
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.
The Krebs cycle generates 1 ATP molecule per turn through substrate-level phosphorylation. Due to the cycle occurring twice per glucose molecule, a total of 2 ATP molecules are produced per glucose molecule entering the cycle.
acetyl CoA
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Twice