Question

Macronutrient digestion based on GI site

Instructions: If digestion of a nutrient occurs in a particular compartment, be sure to list the enzyme and the digestion products

	Carbohydrate digestion	Protein digestion	Fat digestion
Mouth
Stomach
Lumen of small intestine
Epithelium of small intestine (brush border)		.	.

Answer 1

site	carbohydrate digestion	protein digestion	fat digestion
Mouth	enzyme: amylase digestion product: sugar	no enzyme	enzyme: lingual lipase digestion product: diglyceride+ FFA
stomach	no enzymes	enzyme: pepsin, renin digestion products: proteases, peptones, paracaseinate	enzyme: gastric lipase digestion product: diglyceride+ FFA,
lumen of small intestine	; enzyme: pancreatic alpha amylase digestion products: maltose, isomaltose, dextrin	enzyme: trypsin, chymotrypsin, elastase, carboxypeptidase A, carboxypeptidase B digestion product: trypsinogen, chymotrypsinogen, pro elastase	enzyme: pancreatic lipase+ co-lipase, cholesteryl esterase, phospholipase A2 digestion product: 2MG+FFA
Endothelium of smallintestine	enzyme: dextrinase, maltase, isomaltase ,sucrase, lactase digestion products: glucose, fructose, galactose, maltose	enzyme: aminopeptidase, dipeptidase digestion product: amino acid	enzyme: intestinal lipase+ bile acids end products: Glycerol+ FFA