A series of oxidative reactions in the breakdown of acetyl units derived from GLUCOSE; FATTY ACIDS; or AMINO ACIDS by means of tricarboxylic acid intermediates. The end products are CARBON DIOXIDE, water, and energy in the form of phosphate bonds.

Synonyms: Cycle, Krebs, Tricarboxylic Acid Cycle, Tricarboxylic Acid Cycles, Cycles, Citric Acid, Cycle, Tricarboxylic Acid, Cycles, Tricarboxylic Acid, Cycle, Citric Acid, Krebs Cycle, Citric Acid Cycles, Citric Acid Cycle