digestion of protein. breaking the complex molecule first into peptides then into individual amino acids.

digestion protein break molecule peptide amino acid complex pepsin chymotrypsin enzyme stomach secretion absorption digestive trypsin pancreas duodenum jejunum intestine hydrolysis peptidase chemistry chain metabolism cell enterocyte mouth biochemistry protease structure biology body medicine bond food soluble blood plasma polypeptide exopeptidase dipeptidase enterokinase compounds chewing colorful vector polymer breakdown