本题目来源于试卷: IB Psychology HL Biological Approaches to Human Behaviour，类别为 IB心理学
[单选题]
What are chemicals tba9yc)9k8kepl v .xd0tgb900vf0l w kha-*vfbjk6x ad2 j ,sjw-t counteract a neurotransmitter and prevent a signal from being passed furth2w -s -xkba*6 dfvjj,jer to another neuron.
A. Agonists
B. Pheromones
C. Hormones
D. Antagonists
参考答案: D
本题详细解析:
Antagonists counteract nfp/ftdba(v, f3f8 x u2eurotransmitters and prevent a signal from being passed further. It decreases the activation of a synaptic receptor by blocking the neurotransmitters from binding/bonding. An example of an antagonist is scopolamine, which affecb/fv(f dpu2 ,38 ftaxfts the neurotransmitter Acetylcholine (ACh).
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