In the following reactions, which step of the citric acid cycle and oxidative phosphorylation produces the most ATP?
Correct answer: C. α-Ketoglutarate → Succinate
The step of the citric acid cycle where the most ATP is produced through oxidative phosphorylation is from α-ketoglutarate to succinate. This reaction involves the reduction of FAD and NAD+, which are later used in the electron transport chain to generate ATP.