SAT II Biology E : Neurotransmitters

Study concepts, example questions & explanations for SAT II Biology E

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Example Questions

Example Question #1 : Nervous System And Action Potentials

Which of the following neurotransmitters is the primary inhibitory neurotransmitter in the human central nervous system?

Possible Answers:

Acetylcholine

Serotonin

Glutamate

GABA

Dopamine

Correct answer:

GABA

Explanation:

The correct answer is GABA. GABA is the primary inhibitor used to lower the activity of cells in the human central nervous system. Glutamate, serotonin, and dopamine usually increase the activity of cells, and acetylcholine can increase or decrease cell activity depending on what cell receptor is interacting with the acetylcholine.

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