An alternative way to create ATP is the oxidative phosphorylation, which takes place in aerobic cellular respiration process in addition to the substrate-level phosphorylation that occurs during glycolysis and the Krebs cycle.
An alternative way to create ATP is the oxidative phosphorylation-level phosphorylation. This level phosphorylation occurs during glycolysis. This level phosphorylation occurs during the Krebs cycle. The oxidative phosphorylation takes place in aerobic cellular respiration process in addition to the substrate.