the molecular structural chemical formula of pepsin. functions of the digestive tract enzyme pepsin. turns proteins into

active amino amylase anatomy atom bile binding biochemistry biology biotechnology carbohydrate care chemical chemistry cleavage diastase dietary digestion digestive enzyme fat formula gastric gland health human hydrolysis isolated lipase medical medicine mellitus model molecule organ pancreas pancreatic pepsin peptide physiology pill polysaccharide protein science stoichiometric structural structure system tract