Which statement is NOT a function of HDL according to the material?

• A. Excretes extra cholesterol
• B. Removes excess cholesterol from the blood and transports it to the liver
• C. Removes cholesterol from depositing on artery walls
• D. Helps prevent plaque formation by removing cholesterol

Answer: (A)

HDL’s job is to move cholesterol away from arteries and circulating blood back to the liver for processing, a process known as reverse cholesterol transport.

This is why removing cholesterol from the blood and transporting it to the liver, removing cholesterol from depositing on artery walls, and helping prevent plaque formation by removing cholesterol all describe HDL’s function. HDL helps keep arteries cleaner by taking cholesterol out of places where it could contribute to plaque.

The statement that HDL excretes extra cholesterol isn’t accurate because HDL doesn’t directly excrete cholesterol from the body. Cholesterol is delivered to the liver by HDL and then processed and excreted into bile for elimination. So that option is not a function of HDL.