In anaerobic glycolysis, glucose is broken down to lactic acid with how many ATP produced per glucose?

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Multiple Choice

In anaerobic glycolysis, glucose is broken down to lactic acid with how many ATP produced per glucose?

Explanation:
Under anaerobic conditions the energy you get from glucose comes from glycolysis only. This pathway yields a net amount of two ATP per glucose through substrate-level phosphorylation. The pyruvate produced is then converted to lactate to regenerate NAD+, allowing glycolysis to continue, but this lactate formation itself does not produce additional ATP. So the total ATP yield per glucose in anaerobic glycolysis is two. The larger numbers (like 30 or 36) come from aerobic respiration with oxidative phosphorylation, which isn’t available without oxygen, and producing only one ATP is not consistent with glycolysis’ net output.

Under anaerobic conditions the energy you get from glucose comes from glycolysis only. This pathway yields a net amount of two ATP per glucose through substrate-level phosphorylation. The pyruvate produced is then converted to lactate to regenerate NAD+, allowing glycolysis to continue, but this lactate formation itself does not produce additional ATP. So the total ATP yield per glucose in anaerobic glycolysis is two. The larger numbers (like 30 or 36) come from aerobic respiration with oxidative phosphorylation, which isn’t available without oxygen, and producing only one ATP is not consistent with glycolysis’ net output.

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