Question

multiple choice question
what is the benefit of having a high blood level of hdl?

hdl helps distribute dietary fats from the intestines to the blood cells.
hdl helps cholesterol embed in the blood vessel lining.
hdl contains a higher proportion of lipid to protein.
hdl removes excess cholesterol from the circulation.

Explanation:

To determine the benefit of high HDL levels, recall HDL's function: HDL (high - density lipoprotein) is known as "good cholesterol" because it removes excess cholesterol from the bloodstream and transports it to the liver for excretion or re - use.

• The first option is incorrect as chylomicrons (not HDL) help distribute dietary fats.
• The second option is wrong because HDL does not help cholesterol embed in blood vessel linings (that's more related to LDL's negative effect).
• The third option is incorrect as HDL has a higher proportion of protein to lipid (hence "high - density").
• The fourth option correctly states HDL's role in removing excess cholesterol from circulation.

Answer:

D. HDL removes excess cholesterol from the circulation.