Question

Which of the following statements is true of LDL and HDL?

A. LDL is considered "good" cholesterol.
B. HDL carries cholesterol away from the arteries.
C. LDL is associated with increased risk of heart disease.
D. HDL is the primary carrier of triglycerides.

Answer 1

The true statements about LDL and HDL are that HDL carries cholesterol away from the arteries (considered "good") and LDL is associated with an increased risk of heart disease (considered "bad").

Step-by-step explanation:

Which of the following statements is true of LDL and HDL? Among the provided choices, B. HDL carries cholesterol away from the arteries and C. LDL is associated with increased risk of heart disease are accurate. HDL (High-density lipoproteins) indeed carries cholesterol away from the arteries to the liver for processing, which is why it is often termed the "good cholesterol transporter." Conversely, LDL (Low-density lipoproteins) carries cholesterol from the liver to the cells, but if levels are too high, it can lead to the buildup of plaque in arteries, thereby increasing the risk of heart disease and making LDL known as the "bad cholesterol transporter." The statement D. HDL is the primary carrier of triglycerides is false as VLDL primarily carries triglycerides.

Answer 2

The true statement about LDL and HDL is B. HDL carries cholesterol away from the arteries, with HDL and LDL serving as 'good' and 'bad' cholesterol transporters, respectively.

Step-by-step explanation:

Of the given statements about LDL (low-density lipoprotein) and HDL (high-density lipoprotein), the true statement is that B. HDL carries cholesterol away from the arteries. LDL is often referred to as 'bad cholesterol transporter' because it carries cholesterol to tissues, including arteries, where it can contribute to plaque buildup and increase heart disease risk. Conversely, HDL is known as the 'good cholesterol transporter' as it helps transport excess cholesterol back to the liver for recycling, which aids in preventing arterial plaque formation and thus reduces heart disease risk.

HDL does not primarily carry triglycerides; that function belongs to VLDL (very low-density lipoprotein). Therefore, statement D is incorrect. Statement A is false as LDL is not considered 'good' cholesterol, and statement C, while true regarding LDL's association with heart disease risk, is not the option that best fits the questioned comparison between HDL and LDL functions directly.