What happens to pyruvic acid during the Krebs Cycle?


Quick Answer

Pyruvic acid splits apart and joins together with coenzyme A right before the Krebs Cycle, according to the CK-12 Foundation. It then forms a compound known as acetyl-CoA.

Continue Reading

Full Answer

A two-carbon molecule is created from the joining together of pyruvic acid, and the remaining carbon molecule joins with oxygen to form carbon dioxide. The coenzyme A is converted to citric acid, and the carbon dioxide is then released as a waste product. At this time, high-energy electrons are released and captured within NADH. The glycolysis stage forms two pyruvic acid molecules when the glucose splits apart. Sixteen energy-carrier molecules are created as a byproduct of the Krebs Cycle, making it an efficient means of producing energy from the cell. The Krebs Cycle is the second stage of cellular respiration.

Learn more about Cells

Related Questions