LDL and HDL's Structural and Functional Difference
LDL molecules are larger than HDL molecules and contain more protein than cholesterol. Because LDL has low density, it allows for it to easily attach to the blood vessel walls and over time form plaque. The main function of LDL is to attach itself to the cholesterol on the liver and carry it to cells in the body. HDL contains Apo lipoprotein, which helps the molecule from becoming damaged in reactions involving oxygen. The main function of HDL is to ensnare excess cholesterol and remove it from blood vessels and tissues. After, it takes the cholesterol to the liver to be disposed.