Biology / Unit 3 Bio 0548 worked example, 60 to 90 seconds
Steps of the Citric Acid Cycle
Captions available
The idea
The citric acid cycle carries a two-carbon acetyl group through eight steps of oxidation, releasing two carbon dioxide molecules and harvesting electrons and one ATP-equivalent molecule per turn.
Where people slip
The citric acid cycle produces very little ATP directly — its real yield is the electron carriers NADH and FADH2, spent in the pathway that follows.
Your place on the trail
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