Lipoprotein = Lipid part + Protein part (also called Apolipoprotein)
NOTE: Don’t confuse in between lipoprotein and apolipoprotein, Apolipoprotein is the protein part of lipoprotein.
Function of lipoprotein-
Transporters for phospholipids (PL), cholesterol, triacylglycerols (TAG) and other essential molecules that are insoluble in blood plasma.
Types of lipoproteins-
1. Chylomicrons: Primarily transport dietary lipids from the intestine.
2. Very-low-density lipoproteins (VLDLs): Produced by the liver, transport endogenous (internally synthesized) triglycerides.
3. Low-density lipoproteins (LDLs): Deliver cholesterol to peripheral tissues (often referred to as "bad cholesterol").
4. High-density lipoproteins (HDLs): Collect excess cholesterol from tissues and transport it back to the liver for excretion ("good cholesterol").