Lipolysis Pathways Quiz
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Questions and Answers

Where does lipolysis occur?

  • In the mitochondria of adipose cells
  • In the endoplasmic reticulum of adipose cells
  • In the cytosol of adipose cells (correct)
  • In the nucleus of adipose cells
  • What is the fate of glycerol released from triacylglycerol?

  • Used almost exclusively by the liver to produce glyceraldehyde 3-phosphate (correct)
  • Taken up by cells for immediate energy production
  • Converted to triglycerides for storage
  • Stored until needed by the body
  • What is the role of carnitine in fatty acid oxidation?

  • It breaks down fatty acids in the cytosol
  • It converts fatty acids into triglycerides
  • It helps shuttle long-chain fatty acids into the mitochondria (correct)
  • It inhibits the oxidation of fatty acids
  • Where does the oxidation of fatty acids occur?

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

    What is the primary product of lipolysis?

    <p>Free fatty acids</p> Signup and view all the answers

    Study Notes

    Lipolysis

    • Occurs in the cytoplasm of cells
    • Releases glycerol and fatty acids from triacylglycerol

    Glycerol

    • Transported to the liver for gluconeogenesis, the synthesis of glucose
    • Can also be used as a source of energy by some tissues

    Carnitine

    • Transports long-chain fatty acids across the mitochondrial membrane into the matrix for beta-oxidation

    Beta-Oxidation of Fatty Acids

    • Takes place inside the mitochondria of cells
    • Results in the breakdown of fatty acids into acetyl-CoA

    Primary Product of Lipolysis

    • Fatty acids

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    Description

    Test your knowledge of lipid metabolism pathways with this quiz on lipolysis. Explore the cellular processes involved in breaking down fats and the fate of free fatty acids. Challenge yourself to understand the hydrolysis process driven by lipase enzymes.

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