Question

What is adsorsion , absorsion and micelles

Answer 1

Lipid absorption involves the digestion products of triglycerides, phospholipids, cholesterol esters, and fat-soluble vitamin esters, that is, free fatty acids, small amounts of 2-monoglycerides, lysophospholipids (mainly lysophosphatidylcholine), cholesterol, fat-soluble vitamins and glycerol, molecules that, with the exception of short-chain and medium-chain fatty acids and glycerol, have a poor solubility in aqueous medium.
These micelles have a structure similar to a membrane bilayer discs cut out from a biological membrane, with size ranging from 40 to 600 Å, therefore, much smaller than emulsified lipid droplets. Bile salts stabilize the cut edges, that is, their hydrophobic face is oriented towards the centre of disk, and the hydrophilic portion faces the external environment..