Biology, 27.11.2019 05:31 lilianajimva
Nicotine from cigarette smoke acts as a ligand and associates with the acetylcholine receptor on specific cells in the nervous system. nicotine eventually produces feelings of pleasure and well-being. the listed statements are descriptions of the events that happen in the cellular response to nicotine. place the events in the correct order to describe the steps in the signaling pathway.
a) the acetylcholine receptor is an ion channel, and when a ligand binds, the ion channel opens.
b) an influx of ions carries the signal to the reward areas of the brain.
c) nicotine binds to the transmembrane protein that normally binds the neurotransmitter acetylcholine.
d) the signal causes release of dopamine in the brain, which causes good feelings.
e) nicotine is quickly eliminated from the body (causing cravings for more cigarettes to produce good feelings).
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Nicotine from cigarette smoke acts as a ligand and associates with the acetylcholine receptor on spe...
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