Chapter 16 The citric Acid Cycle The common pathway leading to complete oxidation of carbohydrates, fatty acids, and amino acids to CO2. 5 A pathway providing many precursors for biosynthesisChapter 16 The Citric Acid Cycle The common pathway leading to complete oxidation of carbohydrates, fatty acids, and amino acids to CO2 . A pathway providing many precursors for biosynthesis