Voltage-gated Ion Channels | Cell Bio | Video Textbooks - Preview

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Voltage-gated ion channels are a class of transmembrane proteins that open and close in response to changes in the membrane potential — the voltage difference across a membrane.
These channels have a voltage-sensor domain that moves under the influence of the charge and a highly selective gated transmembrane channel for the ions' movement.
On receiving an impulse, the cell membrane depolarizes, becoming more positive.