no
Yes, low denstity lipoproteins, or LDL, transport endogenous (internally produced) cholesterol from the liver to the tissues.
The function of low density lipoproteins are to carry cholesterol molecules through the body. The cholesterol can be used in membranes for transport or to make hormones.
The function of HDL in the human body is to transport cholesterol for excretion to the liver. The function of LDL is to transport cholesterol to the liver for use.
High-density lipoprotein (HDL)
HDL'S ( high density lipoproteins) transport cholesterol from the bloodstream to the liver to be degraded and excreted. LDL'S are somties refferred to as carrying the "bad" cholesterol, whereas HDL'S carry the "good" cholesterol.
HDL cholesterol is made in the blood. The ApoA1 particles are made in the liver and the intestines and then released into the blood where it binds to extracellular tissues and picks up cholesterol (once the apoA1 picks up the cholesterol and esterify it) it is called HDL. This is done in order to return the cholesterol to the liver.
high density lipoproteins (HDL's)
Chylomicrons and large lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. Their function is to transport dietary lipids from the intestinal epithelial cells to the liver or other locations around the body.Chylomicrons transport fats and cholesterol from the intestine into the liver, then into the bloodstream
Alanine and glutamine. Alanine from skeletal muscle and glutamine from all other peripheral cells.
Bile comes from your liver and is used to break down fats in the intestine. They make chylomicrons to deliver fat from the intesintes to the liver, low density lipoproteins (LDL, a type of cholesterol) to deliver it to tissues, and high density lipoproteins (HDL, a type of cholesterol) to bring it back to the liver.
Both HDL and LDL cholesterol are a kind of fat. Since cholesterol cannot be transported into your bloodstream, it needs these two lipoproteins.HDL is also called "good" cholesterol because it tends to wash cholesterol from blood vessels.LDL is called "bad" cholesterol because it can accumulate in your bloodstream when reaches high levels and cause atherosclerosisMore details find at http://www.cholesterol-hdl-ldl.com/raise-hdl-cholesterol.html
Cholesterol is cholesterol. HDL and LDL are lipoproteinswhichtransport the hydrophobic substance "cholesterol" in the blood stream.Beef liver contains cholesterol.