Neurotransmitters And Receptors

16 Questions | By Jthompson | Last updated: Mar 21, 2022 | Total Attempts: 1488

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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.

What causes vesicles to fuse with the presynaptic membrane, releasing neurotransmitters from the cell?
- A.
  
  Action Potential
- B.
  
  Na
- C.
  
  Ca2+
- D.
  
  G Proteins
5.

Drugs can affect the functionality of neurons in many ways, but not..
- 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