<prompt> Dietary triglycerides are transported byChylomicronsVLDLLDLHDL  <response>: Ans. is a i.e., Chylomicron : Chief carrier of exogenous TGs dietary TGs is -ChylomicronsChief carrier of endogenous TGs i.e.,., synthesized in the liver - VLDLCirculation of lipids in the bodyLipid being insoluble hydrophobic cannot be transported in blood. So they are associated with polar substances to form hydrophilic lipoprotein complexes Classification of lipoprotein on the basis of hydrated density: As the proportion of lipids to protein decreases, the density of the lipoprotein complex increasesChylomicrons lowest density, highest content of lipidsTGsIDL Intermediate density lipoproteinsLDL low density lipoproteinsHDL High density lipoproteinsAfter fat digestion, absorbed fatty acids are reesterified to form TGs and these TGs are converted to lipoprotein complex chylomicrons. These chylomicrons pass to blood circulation through the lymphatic ducts. In the capillaries, lipoprotein lipase present on the surface of the endothelium acts on the chylomicrons and removes most of the TGs from the chylomicrons Chylomicrons are thus converted into chylomicron remnants CRs. There CRs are taken up by the liver.VLDLs are found in the liver and transport TGs formed in the liver to the extrahepatic tissues. In the blood capillaries, LPL acts on the YLDL and removes TGs from it. Thus VLDL is converted to IDL.Most of the IDL particles change into LDL by losing their apoE and some of TGs. Some of IDL is taken up by liver and also the peripheral tissues.Most of LDL particles deliver the cholesterol to the extrahepatic tissues. Only some of the remaining LDL particles are taken up by the liver cells.HDL, is synthesized in the liver cells and removes cholesterol from the extrahepatic tissue and transfers it to the liver.So RememberMaximum exogenous TGs is seen in - Chylomicrons Maximum endogenous TGs is seen in - VLDL Maximum TGs is seen in - ChylomicronsMaximum cholesterol is seen in - LDLCholesterol is transported from liver mainly as - VLDLCarrier of cholesterol in plasma - LDLDietary cholesterol is transported to the extrahepatic tissues by - LDLCholesterol is transported from the extrahepatic tissues to the liver HDL 