Practice question · Select all that apply
Select every statement that is TRUE about synaptic transmission.
Hints
- Two options are misconceptions - one about electricity crossing the gap, one about the SSRI's category.
- The signal goes chemical at the cleft, and an SSRI BOOSTS serotonin, making it an agonist.
Show the answer
- C. Reuptake and enzymatic breakdown both clear transmitter from the cleft.
- D. Neurotransmitter is released from vesicles when an action potential reaches the terminal.
- E. An agonist and an antagonist have opposite effects on the receptor they share.
Why
The electrical-to-chemical switch, reuptake's resetting role, and the antagonist's blocking action are true. The impulse does not cross as electricity, and an SSRI enhances serotonin (a functional agonist), so those two are false.
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More questions on Synaptic Transmission
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