<prompt> Lipids are transferred from intestine to liver by:ChylomicronsVLDLHDLLDL  <response>: Ans. a Chylomicrons. Ref. Harper, Biochemistry, 25th ed., 271LipoproteinFunctionsChylomicron- Delivers dietary triglycerides to peripheral tissues and dietary cholesterol to liver.- Secreted by intestinal epithelial cells.- Levels are classically increased in lipoprotein lipase deficiency. Q- Excess causes pancreatitis, lipemia retinalis, and eruptive xanthomas.VLDL- Delivers hepatic triglycerides to peripheral tissues.- Secreted by liver.- Excess causes pancreatitis.LDL- Delivers hepatic cholesterol to peripheral tissues.- Formed by lipoprotein lipase modification of VLDL in the peripheral tissue.- Taken up by target cells via receptor-mediated endocytosis.- Classically increased in familial hypercholesterolemia.- Most atherogenic.HDL- Mediates centripetal transport of cholesterol reverse cholesterol transport.- Acts as a precursor for apoC and apoE needed for chylomicron and VLDL metabolism.- Secreted from both liver and intestine.- Decreased levels are strongly associated with IHD. 