where does carbohydrate and protein digestion begin
Confidence votes 1.6K. Carbohydrate digestion begins in the mouth, and is broken down with the enzymes in saliva. Protein digestion starts in the stomach, and is broken down with pepsin. Fats are digested in the small intestine using bile and other chemicals.
Protein digestion begins in the stomach with the action of an enzyme that we previously learned about called pepsin. Pepsin is the active protein-digesting enzyme of the stomach. When pepsin acts on the protein molecule, it breaks the bonds that hold the protein molecule together, called peptide bonds.