Ketone Bodies and Heart Fuel Utilization Quiz
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Questions and Answers

What is the name of the process where acetyl CoA derived from fatty acid oxidation is converted into ketone bodies in the liver?

  • Beta-oxidation
  • Ketogenesis (correct)
  • Gluconeogenesis
  • Glycolysis
  • Which two water-soluble ketone bodies are transported in the blood to the heart for energy production?

  • Acetyl-CoA and Malonyl-CoA
  • Acetoacetate and 3-Hydroxybutyrate (correct)
  • Acetoacetate and Butyrate
  • Pyruvate and Lactate
  • What process occurs in the heart where ketone bodies are reconverted to acetyl CoA for oxidation by the TCA cycle?

  • Beta-oxidation
  • Gluconeogenesis
  • Ketolysis (correct)
  • Glycolysis
  • In cases of starvation and uncontrolled diabetes mellitus, what happens to the heart's use of ketone bodies for fuel?

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

    What is the primary purpose of utilizing ketone bodies as a fuel source in the heart?

    <p>Energy production</p> Signup and view all the answers

    Study Notes

    Ketone Bodies as a Source of Fuel

    • In cases of starvation and uncontrolled Diabetes Mellitus (DM), the heart can use ketone bodies as a source of fuel.
    • Ketone bodies are produced in the liver mitochondria through a process called ketogenesis, which converts acetyl CoA derived from fatty acid (FA) oxidation.
    • There are two functional water-soluble ketone bodies: Acetoacetate and 3-hydroxybutyrate.
    • These ketone bodies are transported in the blood to the heart.
    • In the heart, ketone bodies are reconverted to acetyl CoA, which can then be oxidized by the TCA (Tricarboxylic Acid) cycle to produce energy.
    • The process of utilizing ketone bodies as fuels is called ketolysis.

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    Description

    Test your knowledge on how the heart utilizes ketone bodies as a source of fuel during starvation and uncontrolled diabetes. Learn about the conversion of acetyl CoA to ketone bodies, their transportation, and utilization in the TCA cycle for energy production.

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