How can the Hydrophilic Blood Carry the Hydrophobic Cholesterol?
Because blood is hydrophilic and cholesterol is hydrophobic, cholesterol cannot travel through the bloodstream alone. Cholesterol must be carried through the bloodstream by lipoproteins. Lipoproteins are combinations of lipids and proteins. There are two different types; LDLs (Low Density Lipoproteins) carry cholesterol around to the cells of the body. HDLs (High Density Lipoproteins) remove excess cholesterol from the bloodstream and transport it to the liver to be broken down.