Quiz On K6 & K7 Pharmacology Sem 2 Session 2018-2019 (nb 2264)

6 Questions

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Pharmacology Quizzes & Trivia

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Questions and Answers
  • 1. 
    The following statement(s) is/are TRUE with regards to autonomic nervous system:
    • A. 

      Parasympathetic preganglionic fibres are shorter than sympathetic preganglionic fibres.

    • B. 

      The receptors at postganglionic neuron at the sweat gland are muscarinic.

    • C. 

      All preganglionic autonomic neurons secrete acetylcholine.

    • D. 

      The receptors at all parasympathetic postganglionic neurons are nicotinic.

    • E. 

      Adrenal medulla is innervated by the parasympathetic nervous system.

  • 2. 
    The tissues in which the sympathetic nervous system dominate include the
    • A. 

      Ciliary muscle of the eye.

    • B. 

      Vagus nerve of the heart.

    • C. 

      Sphincter muscle of the iris.

    • D. 

      Renin-secreting cells of the kidney.

    • E. 

      The ejaculatory muscle of the genital organ.

  • 3. 
    The following statement(s) is/are TRUE with regards to cholinergic transmission:
    • A. 

      The vesicular ACh-H+ antiporter is a target for vesamicol.

    • B. 

      Botulinum toxin inhibits the fusion of vesicles to presynaptic membrane.

    • C. 

      Nicotinic receptors belong to the G-protein-coupled receptor superfamily.

    • D. 

      Acetylcholine in the synaptic cleft is degraded by choline acetyltransferase.

    • E. 

      Hemicholinium inhibits the synthesis of acetylcholine in the nerve terminal.

  • 4. 
    The following statement(s) is/are TRUE with regards the actions of noradrenaline:
    • A. 

      It binds to receptors located on autonomic ganglia.

    • B. 

      Binding to α2-receptors will inhibit noradrenaline release from the nerve ending.

    • C. 

      Its action is mainly terminated by Uptake 1 mechanism.

    • D. 

      Reserpine may depletes its storage in the vesicles.

    • E. 

      Binding to β2-receptors causes vasoconstriction.

  • 5. 
    The adrenoceptor subtype(s) which cause(s) liver glycogenolysis and gluconeogenesis is/are
    • A. 

      α1 (Gq).

    • B. 

      α1 (Gq).

    • C. 

      β1 (Gs).

    • D. 

      β2 (Gs).

    • E. 

      β3 (Gs).

  • 6. 
    The following statement(s) is/are TRUE with regards to adrenergic transmission :
    • A. 

      An essential amino acid involved in the biosynthesis of catecholamines is tyrosine.

    • B. 

      Noradrenaline is synthesized by DOPA-decarboxylase in the synaptic vesicle.

    • C. 

      Cocaine interferes with the reuptake of noradrenaline into the nerve terminal.

    • D. 

      Noradrenaline in the cytosol is degraded by catechol-O-methyl transferase

    • E. 

      Disulfiram inhibits dopamine-β-hydroxylase leading to increased brain dopamine levels.