Question

Four types of lipoproteins carry triglycerides, phospholipids, and cholesterol throughout the body.

Which lipoprotein is primarily responsible for transporting cholesterol from the liver to peripheral tissues?
A) HDL (High-Density Lipoprotein)
B) LDL (Low-Density Lipoprotein)
C) VLDL (Very Low-Density Lipoprotein)
D) IDL (Intermediate-Density Lipoprotein)

Answer 1

LDL (Low-Density Lipoprotein) is the primary lipoprotein responsible for transporting cholesterol from the liver to peripheral tissues in the body.

Step-by-step explanation:

LDL transports cholesterol synthesized in the liver to various parts of the body, where it can be used for membrane formation, steroid synthesis, and other cellular functions. However, if LDL levels are too high, this can lead to the deposit of cholesterol in the arteries, forming plaques, a condition known as atherosclerosis. It is important to note that while LDL is often referred to as "bad cholesterol" due to its association with atherosclerosis, it serves an essential function in the body by delivering cholesterol where it is needed. By contrast, HDL (High-Density Lipoprotein) is sometimes referred to as "good cholesterol" because it helps to transport cholesterol away from the arteries and back to the liver.