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 that counteractr1lg g)k+p h-i a neurotxn 3sxm1k8/gd ransmitter and prevent a signal from being passed fur 3/ngd8xsx1 kmther to another neuron.
A. Agonists
B. Pheromones
C. Hormones
D. Antagonists
参考答案: D
本题详细解析:
Antagonists counteract n vzl)s ) :+-wh xxny:fm rvjp)a;ni*m,eurotransmitters and prevent a signal from being passed further. It decreases the activation of a synaptic receptor by blocking the neurotransmitterszfal) )v+j,nrxp v: :ixsnmh*)my-w; from binding/bonding. An example of an antagonist is scopolamine, which affects the neurotransmitter Acetylcholine (ACh).
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