Question

Fat which has been digested is packaged in protein- and phosphorus-containing lipoproteins which travel in your lymph to your bloodstream. These are called

Answer 1

Fat that has been digested is packaged in protein- and phosphorus-containing lipoproteins which travel from your lymph to your bloodstream. These are called chylomicrons.

What are chylomicrons?

• Chylomicrons are large triglyceride-rich lipoproteins produced in enterocytes from dietary lipids—namely, fatty acids, and cholesterol.
• Chylomicrons are composed of a main central lipid core that consists primarily of triglycerides, however like other lipoproteins, they carry esterified cholesterol and phospholipids.
• Chylomicrons exit the enterocyte via the lacteals into the systemic circulation.
• They are acted on by LPL with its cofactor Apo-CII, which cleaves off FA moieties, which in muscle and adipose tissue are immediately mobilized for energy or stored for future use.
• So digested fat is transported through lymphatics as chylomicrons.

To learn more about Chylomicrons,

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