Would anaerobic glycolysis create more ATP than aerobic respiration
No, anaerobic glycolysis does not produce more ATP than aerobic respiration. Aerobic respiration is a more efficient process, generating a significantly larger amount of ATP per molecule of glucose compared to anaerobic glycolysis.
During anaerobic glycolysis, glucose is broken down into two molecules of pyruvate, which are then converted into two molecules of lactic acid or ethanol, depending on the organism. This process occurs in the absence of oxygen and produces a net gain of 2 ATP molecules.
In contrast, aerobic respiration occurs in the presence of oxygen and involves several stages including glycolysis, the Krebs cycle, and the electron transport chain. Glycolysis is the initial step and yields 2 ATP molecules. The subsequent Krebs cycle and electron transport chain generate a significant amount of ATP through oxidative phosphorylation. In total, aerobic respiration produces around 36-38 ATP molecules per molecule of glucose.
Therefore, aerobic respiration is much more efficient at generating ATP than anaerobic glycolysis. However, during intense exercise or in certain organisms that cannot access oxygen, anaerobic glycolysis serves as a temporary energy source to produce ATP rapidly.
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