The ATP produced during glycolysis is generated by
- Acheck_circle
Substrate-level phosphorylation (direct transfer of a phosphate from substrate to ADP)
- B
Photophosphorylation (light-driven proton pumping coupled with ATP synthase activity in thylakoids)
- C
Chemiosmotic coupling (proton gradient across the inner mitochondrial membrane drives ATP formation)
- D
Oxidative phosphorylation (electron transfer to O₂ coupled with chemiosmotic ATP synthesis)
Explanation
Substrate-level phosphorylation: a phosphorylated intermediate transfers its P directly to ADP to form ATP. Glycolysis and the Krebs cycle both use this.