Multiple Choice
Which statement is not true?
A) Once a chemical message is delivered,the neurotransmitter is degraded or returned to the presynaptic neuron to begin the process again.
B) All neurotransmitters are quaternary ammonium ions.
C) Norepinephrine,dopamine,and serotonin are important neurotransmitters.
D) Norepinephrine and dopamine are both synthesized from the amino acid tyrosine.
Correct Answer:
Verified
Correct Answer:
Verified
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