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    Did you mean Ligand-Gated Ion Channel?
    GlossaryIonotropic Receptor (Ligand-Gated Ion Channel)

    allows ions to pass through the cell membrane upon activation

    An ionotropic receptor, also known as a ligand-gated ion channel, is a type of receptor that allows ions to pass through the cell membrane in response to the binding of a chemical messenger, such as a neurotransmitter. When the neurotransmitter binds to the receptor, it causes the channel to open, allowing specific ions like sodium, potassium, or calcium to flow into or out of the cell, which can trigger various cellular responses.

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