What enzyme completes the digestion of proteins?

The enzyme that completes the digestion of proteins is peptidase. Peptidases are a class of enzymes that break down proteins into smaller peptides and ultimately into individual amino acids. They work by hydrolyzing the peptide bonds that link amino acids together in the protein chain. Peptidases are found in the digestive systems of animals and plants and are also involved in a variety of other biological processes, such as blood clotting and the immune response.