Answer to Question #74295 in Human Anatomy and Physiology for Teresa Elizabeth Comparan

Question

Absorption of the building blocks of fats, proteins, and carbohydrates occurs in the

Answer 1

The building blocks of proteins are amino acids. The ones of carbohydrates are monosaccharides. The
fats consist of glycerol and higher fat acids. The building blocks are called monomers. Their absorption
occurs in the small intestine by the enterocytes of its villi. It can be performed by the passive transport
like monosaccharides and active one like amino acids. The mechanism of lipid absorption is more
complex. It includes emulsifacation, lipolysis, micellar formation, membrane translocation,intracellular
resynthesis, chylomicron formation and lymphatic drainage.
Source:
«Physiology and pathophysiology of intestinal absorption»The American Journal of Clinical Nutrition,
Volume 55, Issue 1, 1 January 1992, Pages 299S–308S