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Voltage-gated channels are proteins in the cell membrane which open when stimulated by a voltage (an electrical signal). The voltage causes the channel to open, thereby allowing the entry or exit of whatever substance the channel relates to.

An example of this the the voltage-gated sodium channels on neurons. When an action potential (a voltage), passes over the cell, it open these channels and allows sodium to enter the cell.

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11y ago
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9y ago

Voltage gated ion channels open and close in response to changes in the membrane potential of the cell. When the membrane potential reaches a certain point, the protein structure of the channel well shift, allowing the passage of specific ions through it. For example, there is an voltage gated ion channel that allows the passage of potassium ions out of the cell when the cell becomes too depolarized.

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10y ago

See also computer chips and semiconductor materials.

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Q: What is a voltage-gated membrane channel?
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