Why might an expert on nicotine pharmacology think of nicotine as a functional antagonist?
A) While nicotine can activate a nicotinic receptor, ions fail to pass through the open ion channel.
B) Nicotine binds to the neurotransmitter site but does not activate the receptor.
C) An agonist causes the receptor to have a longer period of time in a desensitized state than an activated state.
D) A nicotinic receptor's ion channel cause positively charged ions to exit a neuron rather than enter it.
Correct Answer:
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