Lipid Metabolism Quiz
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Questions and Answers

What triggers the mobilization and degradation of TAG in adipocytes?

  • Phosphatidic acid
  • Hormone sensitive lipase (correct)
  • Insulin
  • Glycerol kinase
  • What are the precursors for the biosynthesis of TAG and PL?

  • Hormones insulin and glucagon
  • Glycerol-3-PO4 and fatty acyl CoA (correct)
  • Dihydroxy acetone PO4 and glycerol
  • Glycerol and phosphatidic acid
  • Where does the breakdown product of TAG get taken up when energy is needed?

  • Adipocytes
  • Pancreas
  • Skeletal muscles, kidney and liver (correct)
  • Brain
  • In which organisms are fatty acids from the diet incorporated in TAG?

    <p>Non-growing organisms</p> Signup and view all the answers

    What is the common precursor for both TAG and PL?

    <p>Phosphatidic acid</p> Signup and view all the answers

    What are the precursors for the biosynthesis of TAG and PL?

    <p>Glycerol-3-PO4 and fatty acyl CoA</p> Signup and view all the answers

    In which organisms are fatty acids from the diet incorporated in TAG?

    <p>Non-growing organisms</p> Signup and view all the answers

    What triggers the mobilization and degradation of TAG in adipocytes?

    <p>Hormones</p> Signup and view all the answers

    Where does the breakdown product of TAG get taken up when energy is needed?

    <p>Skeletal muscles, kidney, and liver</p> Signup and view all the answers

    What is the common precursor for both TAG and PL?

    <p>Phosphatidic acid</p> Signup and view all the answers

    Study Notes

    Triglyceride (TAG) Mobilization and Degradation

    • Hormone-sensitive lipase (HSL) triggers the mobilization and degradation of TAG in adipocytes.

    Biosynthesis of TAG and Phospholipids (PL)

    • Precursors for the biosynthesis of TAG and PL are glycerol-3-phosphate and fatty acids.
    • Glycerol-3-phosphate is the common precursor for both TAG and PL.

    Fatty Acid Incorporation

    • Fatty acids from the diet are incorporated into TAG in animals.

    TAG Breakdown and Uptake

    • When energy is needed, the breakdown product of TAG (fatty acids) gets taken up by the liver.

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    Related Documents

    Lipid Metabolism PDF

    Description

    Test your knowledge of lipid metabolism with this quiz on the biosynthesis and metabolism of triacylglycerol. Explore the fate of fatty acids from diet and the storage capacity of TAG in the human body. Gain insights into the synthesis of TAG and phospholipids from glycerol-3-phosphate and fatty acyl CoA.

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