Which particle carries the highest cholesterol content?

• A. LDL
• B. HDL
• C. VLDL
• D. Chylomicrons

Answer: (A)

Cholesterol is carried by different lipoproteins in the blood, and their roles depend on what each particle is rich in. Among these particles, LDL is the most cholesterol-rich in its cargo. LDL particles circulate with a high content of cholesterol esters and deliver cholesterol to peripheral tissues through LDL receptors. This makes them the primary cholesterol carrier in plasma.

Chylomicrons are large and mainly carry dietary triglycerides, especially after meals. VLDL also transports triglycerides from the liver. HDL, on the other hand, is rich in protein and acts primarily in reverse cholesterol transport, collecting cholesterol from tissues and delivering it back to the liver. Because of these differences, the particle that carries the highest cholesterol content is the LDL particle.