G Protein-Coupled Receptors Mechanism Quiz
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Questions and Answers

Which type of adrenergic receptor is known to be a Gi coupled receptor?

  • β2
  • β1
  • α2A (correct)
  • α1A

    • Which G protein is primarily coupled to β1 receptors?

  • Gs (correct)
  • Gq
  • G12
  • Gi

    • How many subtypes do α1 receptors have?

  • 4
  • 2
  • 1
  • 3 (correct)

    • Adrenaline or noradrenaline act as ligands for which type of adrenoreceptors?

    <p>α2</p> Signup and view all the answers

    What is the main role of the sympathetic division in response to stressful situations?

    <p>Initiating the fight-or-flight response</p> Signup and view all the answers

    How do adrenergic receptors mediate the actions of the sympathetic nervous system?

    <p>By transducing external catecholamine stimuli into intracellular signals</p> Signup and view all the answers

    Which type of adrenoreceptor is coupled to a Gq protein?

    <p>α1A</p> Signup and view all the answers

    How many total subtypes of adrenoreceptors are there?

    <p>9</p> Signup and view all the answers

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