試題詳解

40. How many of the following neurotransmitters is/are neuropeptide(s)? I. Acetylcholine II. Gamma-aminobutyric acid (GABA) III. Norepinephrine IV. Dopamine V. Serotonin VI. Endorphin
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4