Which of the following is critical to prevent the overaccumulation of cholesterol in the body?
A) the optimum concentration of carbon dioxide in the body
B) an adequate number of LDL receptors on the surface of cells
C) the increased removal of cholesterol through stool
D) an adequate number of HDL receptors on the surface of cells

Question

Quizplus · Accepted Answer

An adequate number of LDL receptors on the surface of cells is critical to prevent the overaccumulation of cholesterol in the body because these receptors facilitate the uptake of LDL (low-density lipoprotein) cholesterol from the bloodstream and into cells for use or storage. Without enough LDL receptors, cholesterol cannot enter cells and is left circulating in the bloodstream, leading to accumulation and potential negative health effects. The other options given (the optimum concentration of carbon dioxide in the body, increased removal of cholesterol through stool, and an adequate number of HDL receptors on the surface of cells) may all have some impact on cholesterol levels, but they are not as critical as having enough LDL receptors.

Which of the Following Is Critical to Prevent the Overaccumulation