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 The amino acid tryptophan is the precursor to which neurotransmitter?


A) Dopamine
B) Endorphin
C) Serotonin
D) Nitric oxide

Correct Answer

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 Spatial summation is the result of synaptic inputs from different locations arriving at the same time.

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 What do dopamine, norepinephrine, and epinephrine share in common?


A) They all affect the same receptors.
B) They are all synthesized from the same amino acids.
C) They are all released by the same neurons.
D) They all are gases.

Correct Answer

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 Exocytosis is the process by which neurotransmitters are ____.


A) released from the presynaptic neuron
B) synthesized
C) destroyed
D) secreted into synaptic vesicles

Correct Answer

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 Riva is unable to eat eggs, milk, and peanuts. She might have altered levels of _____ as a result.


A) nitric oxide
B) dopamine
C) glutamate
D) acetylcholine

Correct Answer

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