Low-density lipoprotein (LDL) is characterized by which property?

Low-density lipoprotein (LDL) is characterized by which property?

• A. low protein density and delivers cholesterol to peripheral tissues
• B. high protein density and removes cholesterol from tissues
• C. high triglyceride content and transports to liver
• D. low triglyceride and transports cholesterol to liver

Answer: (A)

LDL’s defining trait is its low density due to a high lipid-to-protein ratio, and its main role is to deliver cholesterol to cells throughout the body. That combination—low protein density and cholesterol delivery to peripheral tissues—best captures what LDL is and what it does. HDL, by contrast, is high in protein and helps remove cholesterol from tissues, while VLDL is rich in triglycerides and mainly transports them. So the described property aligns with LDL’s composition and function.

LDL’s defining trait is its low density due to a high lipid-to-protein ratio, and its main role is to deliver cholesterol to cells throughout the body. That combination—low protein density and cholesterol delivery to peripheral tissues—best captures what LDL is and what it does. HDL, by contrast, is high in protein and helps remove cholesterol from tissues, while VLDL is rich in triglycerides and mainly transports them. So the described property aligns with LDL’s composition and function.