How does the intestinal absorption of lipids differ from the absorption of glucose and amino acids?
Digestion of fat takes place in the small intestine. Fatty acids are absorbed by the lacteals that have large surface area and a network of capillaries. Fatty acids undergo further modification for their absorption in the blood.
Absorption of glucose and amino acids takes place in the kidney. Their absorption takes place in the glomerulus and they are reabsorbed in the Bowman's capsule.
There is conversion of excess amino acids into urea which then goes to the bladder. From there, it is released down the ureter.