Neurotransmitters And Receptors

16 Questions | Total Attempts: 883

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Neurotransmitters And Receptors

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Questions and Answers
  • 1. 
    A receptor that has a direct, mechanical response to a neurotransmitter binding to it is..
    • A. 

      Ionotropic

    • B. 

      Metabotropic

  • 2. 
    When a neurotransmitter is bound to a metabotropic receptor..
    • A. 

      The receptor's channel opens, allowing ions to flow through

    • B. 

      A protein is transferred to a nearby ionotropic receptor, causing that receptor's channel to open

    • C. 

      Ions residing inside the cell are activated, creating new neurotransmitters

    • D. 

      A G protein inside the cell is activated, opening this receptor's channel

  • 3. 
    Tryptophan is a precursor for..?
    • A. 

      Dopamine

    • B. 

      Serotonin

    • C. 

      Glutamate

  • 4. 
    • A. 

      Action Potential

    • B. 

      Na

    • C. 

      Ca2+

    • D. 

      G Proteins

  • 5. 
    • A. 

      + Blocking reuptake

    • B. 

      - Blocking postsynaptic receptors

    • C. 

      - Stimulating autoreceptors, inhibiting the release of neurotransmitters

    • D. 

      + Stimulating the release of neurotransmitters

    • E. 

      - Blocking postsynaptic receptors

    • F. 

      - Inhibiting Ca2+ induction

  • 6. 
    One of the main mediators of neurotransmission, the ________ receptor is an ionotropic receptor and composed of five subunits
    • A. 

      Muscarinic acetylcholine

    • B. 

      Serotonin

    • C. 

      Aspartate

    • D. 

      Nicotinic acetylcholine

  • 7. 
    Black widow venom and botulinum are examples of..
    • A. 

      Presynaptic inhibitors

    • B. 

      Receptor antagonists

    • C. 

      Postsynaptic inhibitors

  • 8. 
    Dopamine receptors are ionotropic receptors
    • A. 

      True

    • B. 

      False

  • 9. 
    Of the 7 types of 5-HT receptors, only 5-HT 1 is linked to stimulatory G-proteins
    • A. 

      True

    • B. 

      False

  • 10. 
    Why is 5-HT3 unique among the 5-HT receptors?
    • A. 

      It's a serotonin receptor

    • B. 

      It's the only ligand-gated ion channel

    • C. 

      They have a stimulatory effect on neurotransmission

  • 11. 
    The NMDA receptor
    • A. 

      Is a ligand-gated ion channel, activated by dopamine

    • B. 

      Is activated by glutamate and glycine and belongs to the g-protein coupled family

    • C. 

      Is a ligand-gated ion channel, activated by glutamate and glycine

    • D. 

      Is activated by dopamine and belongs to the g-protein coupled family

  • 12. 
    Irregular activity in the noradrenergenic system is related to
    • A. 

      Depression and mania

    • B. 

      Parkinson's disease and schizophrenia

    • C. 

      OCD and depression

  • 13. 
    The Serotonergic system is active in maintaining normal motor behavior
    • A. 

      True

    • B. 

      False

  • 14. 
    A common target for neuroleptic drugs to antagonize are is
    • A. 

      NMDA

    • B. 

      NAChR

    • C. 

      Dopamine (D2)

  • 15. 
    Glutamate is transported into vesicles by EAAT1-EAAT5
    • A. 

      True

    • B. 

      False

  • 16. 
    _____ is the major inhibitory neurotransmitter in the central nervous system
    • A. 

      GABA

    • B. 

      Acetylcholine

    • C. 

      Cytokines

    • D. 

      5HT-3