Practice Exams › AP Biology — Cell Respiration › Question #21
High-School-Ap Biology
During glycolysis, glucose (6 carbons) is broken down into:
1
Two molecules of pyruvate
✓ Correct Answer

Explanation

Glycolysis splits one glucose into two molecules of pyruvate (3-carbon) in the cytosol, with a net yield of 2 ATP and 2 NADH. The carbon count is preserved (3 + 3 = 6).

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