Chylomicrons and Lipid Transportation Quiz
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Questions and Answers

What is the primary role of HDL in lipid transportation?

  • HDL circulates throughout the body, making its contents available to cells.
  • HDL removes cholesterol from cells and carries it back to the liver. (correct)
  • HDL has anti-inflammatory properties that prevent plaque buildup.
  • HDL plays a crucial role in controlling blood cholesterol concentrations.

    • What is the primary role of LDL in lipid transportation?

  • LDL plays a crucial role in controlling blood cholesterol concentrations.
  • LDL circulates throughout the body, making its contents available to cells. (correct)
  • LDL has anti-inflammatory properties that prevent plaque buildup.
  • LDL removes cholesterol from cells and carries it back to the liver.

    • Which type of blood cholesterol is most strongly linked to heart disease risk?

  • Phospholipids
  • HDL cholesterol
  • Triglycerides
  • LDL cholesterol (correct)

    • What is the role of LDL receptors on liver cells in lipid transportation?

    <p>LDL receptors help control blood cholesterol concentrations by removing LDL. (D)</p> Signup and view all the answers

    Which of the following factors is known to lower LDL cholesterol or raise HDL cholesterol?

    <p>Maintaining a healthy weight (A)</p> Signup and view all the answers

    What is the relationship between HDL and the prevention of heart attacks?

    <p>HDL carries cholesterol from cells to the liver for disposal, which can prevent heart attacks. (B)</p> Signup and view all the answers

    What is the main function of chylomicrons in the body?

    <p>Transport triglycerides from the intestine to the rest of the body (C)</p> Signup and view all the answers

    What happens to chylomicrons as they pass by cells in the body?

    <p>Cells remove TGs from them, causing them to shrink (A)</p> Signup and view all the answers

    Where do the liver cells collect remnants of chylomicrons for further processing?

    <p>Blood (A)</p> Signup and view all the answers

    What is the eventual fate of Very-Low-Density Lipoproteins (VLDL) as they travel through the body?

    <p>They turn into Low Density Lipoproteins (LDL) (B)</p> Signup and view all the answers

    Which cells are most active in synthesizing cholesterol, fatty acids, and other lipid compounds?

    <p>Liver cells (B)</p> Signup and view all the answers

    What is a characteristic feature of Low Density Lipoproteins (LDL)?

    <p>Become denser as they are depleted of TGs (D)</p> Signup and view all the answers

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