12 Questions
What is the primary role of HDL in lipid transportation?
HDL removes cholesterol from cells and carries it back to the liver.
What is the primary role of LDL in lipid transportation?
LDL circulates throughout the body, making its contents available to cells.
Which type of blood cholesterol is most strongly linked to heart disease risk?
LDL cholesterol
What is the role of LDL receptors on liver cells in lipid transportation?
LDL receptors help control blood cholesterol concentrations by removing LDL.
Which of the following factors is known to lower LDL cholesterol or raise HDL cholesterol?
Maintaining a healthy weight
What is the relationship between HDL and the prevention of heart attacks?
HDL carries cholesterol from cells to the liver for disposal, which can prevent heart attacks.
What is the main function of chylomicrons in the body?
Transport triglycerides from the intestine to the rest of the body
What happens to chylomicrons as they pass by cells in the body?
Cells remove TGs from them, causing them to shrink
Where do the liver cells collect remnants of chylomicrons for further processing?
Blood
What is the eventual fate of Very-Low-Density Lipoproteins (VLDL) as they travel through the body?
They turn into Low Density Lipoproteins (LDL)
Which cells are most active in synthesizing cholesterol, fatty acids, and other lipid compounds?
Liver cells
What is a characteristic feature of Low Density Lipoproteins (LDL)?
Become denser as they are depleted of TGs
Test your knowledge on chylomicrons, the largest and least dense lipoproteins responsible for transporting triglycerides from the intestine to the rest of the body. Learn about how cells remove triglycerides from chylomicrons and the composition of remnants left after absorption.
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