biology biochemistry metabolism
Definition
Krebs Cycle
The Krebs Cycle (or Citric Acid Cycle) is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins. It occurs in the mitochondrial matrix and provides precursors for certain amino acids, as well as the reducing agent NADH that is used in numerous other biochemical reactions.