protein digestion. enzymes proteases are digestion breaks the protein into single amino acids

protein enzyme protease peptidase digestion break peptide chain amino acid absorbed digestive peptides molecule structure science atom chemistry health biology bonds arginine acids insulin background large research molecular biochemistry sequence cell metabolism biomolecule technology medicine laboratory experiment pepsin pancreas isolated chemical formula system gastric tract anatomy vector human medical absorption stomach physiology model biotechnology enzymes amylase digestion proteases breaks single blood