Biology · Human Health and Diseases

Which neurochemical mechanism primarily explains how nicotine alters habits and causes addiction in regular smokers?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1It gets metabolically converted into a completely new category of neurotransmitter.
2It structurally destroys the cerebral cortex of the brain.
3It stimulates nicotinic acetylcholine receptors, triggering the release of dopamine in the brain reward pathway.✓
4It binds directly to dopamine molecules to chemically alter them.

Correct answer

It stimulates nicotinic acetylcholine receptors, triggering the release of dopamine in the brain reward pathway.

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