The flowchart summarizes the four stages of aerobic cellular respiration.
Which stage of cellular respiration produces the largest amount of ATP?
- A
Glycolysis in the cytoplasm
- B
Pyruvate oxidation
- Ccheck_circle
Oxidative phosphorylation in the electron transport chain
- D
Krebs cycle by substrate-level phosphorylation
Explanation
Glycolysis and Krebs each produce a small ATP yield (substrate-level), but most ATP comes from oxidative phosphorylation, where ETC-driven proton gradients power ATP synthase.