The citric acid cycle, shown in —also known as the tricarboxylic acid cycle (TCA cycle) or the Krebs cycle—is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate—derived from carbohydrates, fats, and proteins—into carbon dioxide
Source: Boundless. “Acetyl CoA and the Citric Acid Cycle.” Boundless Microbiology. Boundless, 13 Apr. 2016. Retrieved 29 Apr. 2016 from https://www.boundless.com/microbiology/textbooks/boundless-microbiology-textbook/microbial-metabolism-5/the-citric-acid-krebs-cycle-46/acetyl-coa-and-the-citric-acid-cycle-301-7647/