MICROANATOMY

Detailed explanation-1: -Fatty acids and 2-monoglycerides that enter absorptive cells are recombined to form triglycerides in the smooth endoplasmic reticulum of these cells. Fatty acids bind to two kinds of cytosolic fatty acid binding protein (FABPs). These proteins are small (14 kDa and 15 KDa) and make up 1–2% of the cytosolic protein.

Detailed explanation-2: -The major products of lipid digestion-fatty acids and 2-monoglycerides-enter the enterocyte by simple diffusion across the plasma membrane. A considerable fraction of the fatty acids also enter the enterocyte via a specific fatty acid transporter protein in the membrane.

Detailed explanation-3: -Inside the intestinal cells, the monoglycerides and fatty acids reassemble themselves into triglycerides. Triglycerides, cholesterol, and phospholipids form lipoproteins when joined with a protein carrier.