how many atp produced in krebs cycle

Per one turn of the Krebs cycle, 1 molecule of GTP (or ATP) is produced directly. The high-energy electrons carried by 3 NADH and 1 FADH₂ subsequently contribute to oxidative phosphorylation in the electron transport chain, generating approximately 10 ATP equivalents per cycle. Considering two cycles per glucose molecule (since each glucose yields two acetyl-CoA molecules), the total ATP equivalents produced by the Krebs cycle per glucose is around 20 ATP.