| A | B |
| substrate of pancreatic amylase | starch or dextrins |
| substrate of trypsin | proteins or protein fragments |
| substrate of lipase | fats |
| substrate of lactase | lactose (milk sugar) |
| final breakdown product of protein | amino acid |
| final breakdown products of fats | fatty acids and glycerol |
| final breakdown product of carbohydrates | monosaccharides |
| example of a disaccharide | sucrose |
| Source of the enzyme pepsin | gastric glands |
| source of lipase | pancreatic juice |
| source of bile | liver |
| function of bile | physically digests fats (emulsification) |
| source of intestinal juice | intestinal glands (krypts of Lieberkuhns) |
| champion of chemical digestion | duodenum |
| pH of gastric juice | 1-2 |
| pH of duodenum | 7.5 |
| protects the upper duodenum | Brunner's (mucus) glands |
| example of a monosaccharide | glucose |
| structures which absorb nutrients | villi |
| circular folds which cause chyme to spiral | plicae circulares |