Question

Absorption of carbohydrates proteins and lipids

Answer 1

carbohydrates
All carbohydrates absorbed in the small intestine must be hydrolyzed to monosaccharides prior to absorption. ... Digestion of starch begins with the action of salivary alpha-amylase/ptyalin, although its activity is slight in comparison with that of pancreatic amylase in the small intestine

proteins
Sites of Absorption of Protein Digestion Products. Stomach plays a negligible role in the absorption of protein digestion products. The small intestine is the principal site of protein absorption. By the time the luminal contents reach the ileocecal junction, absorption of proteins is almost complete.

lipids
Absorption of Lipids. The bulk of dietary lipid is neutral fat or triglyceride, composed of a glycerol backbone with each carbon linked to a fatty acid. Foodstuffs typically also contain phospholipids, sterols like cholesterol and many minor lipids, including fat-soluble vitamins.