Uploaded November 2020 | Updated September 2026, 2 weeks ago

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Enzyme reactions of the Citric Acid Cycle (TCA, Krebs), central to respiration and metabolism. Carbon atoms from Glycolysis are gradually released as carbon dioxide, and deliver electrons that are captured and transferred to the Electron Transport Chain.

Bringing to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.