When a Small-Molecule Neurotransmitter Molecule Binds to an Ionotropic Receptor

question 63

Multiple Choice

When a small-molecule neurotransmitter molecule binds to an ionotropic receptor, the

• A) cell fires.
• B) cell stops firing.
• C) ligand is activated.
• D) associated ion channel opens or closes.
• E) EPSP gradually increases.

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