What are the complete oxidation products of proteins?

The complete oxidation products of proteins involve their breakdown during metabolism. Proteins are primarily composed of amino acids, which undergo a series of biochemical processes to be fully oxidized. When proteins are oxidized in the body, they are deaminated, meaning the amino group is removed, which primarily results in the formation of urea. This urea is then excreted from the body through urine.

The carbon skeletons of the amino acids that remain undergo further catabolism, leading to the production of carbon dioxide and water. This process is part of cellular respiration, where the energy stored in the amino acids is released, and byproducts such as carbon dioxide and water are produced.

Understanding this process is crucial, especially in the context of metabolism and energy production, highlighting why the correct answer identifies carbon dioxide, water, and urea as the final products resulting from the complete oxidation of proteins.