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Eicosanoids and Their Derivatives Quiz
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Eicosanoids and Their Derivatives Quiz

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Questions and Answers

What are eicosanoids named after?

  • Their role in cell membrane phospholipid synthesis
  • Their derivation from 20 carbon atom unsaturated essential fatty acids (correct)
  • Their biosynthesis of PGs and TXs
  • Their activation of phospholipase A2

    • Which enzyme is involved in forming arachidonate, the precursor of eicosanoids?

  • 5-lipooxygenase
  • Thromboxane synthase
  • Cyclooxygenase
  • Phospholipase A2 (correct)

    • Which pathway leads to the biosynthesis of PGs and TXs?

  • The cyclooxygenase pathway (correct)
  • The phospholipase A2 pathway
  • The 5-lipooxygenase pathway
  • The arachidonic acid pathway

    • What is the main source of arachidonic acid, the precursor of eicosanoids?

    <p>Cell membrane phospholipid</p> Signup and view all the answers

    Which type of fatty acid is the precursor of eicosanoids?

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

    What enzyme is activated by various stimuli to form arachidonate, the precursor of eicosanoids?

    <p>Phospholipase A2</p> Signup and view all the answers

    Which pathway leads to the biosynthesis of leukotrienes?

    <p>5-lipooxygenase pathway</p> Signup and view all the answers

    What is the Greek meaning of 'Eicosa' in the context of eicosanoids?

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

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