Question

HDL is called good cholesterol because it

• A. Transports cholesterol from tissues to liver
• B. Transports triglycerides from intestine
• C. Carries cholesterol from liver to tissues
• D. Increases fat deposition in blood vessels

Hint:

HDL is good cholesterol because it carries cholesterol from tissues back to the liver.

Answer 1

The Correct Option is A

Concept:
HDL stands for high-density lipoprotein. It is commonly called good cholesterol.

Step 1: Function of HDL.
HDL collects excess cholesterol from peripheral tissues and blood vessels.

Step 2: Reverse cholesterol transport.
HDL carries this cholesterol back to the liver for metabolism and excretion. \[ \text{Tissues} \rightarrow \text{HDL} \rightarrow \text{Liver} \]

Step 3: Why HDL is good.
By removing excess cholesterol from tissues and arteries, HDL helps reduce the risk of atherosclerosis.

Step 4: Checking other options.
Transport of dietary triglycerides is done by chylomicrons.
Transport of cholesterol from liver to tissues is mainly done by LDL.
HDL does not increase fat deposition in blood vessels. \[ \boxed{\text{Transports cholesterol from tissues to liver}} \]