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Ion pump (biology)

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In biology, an ion pump is a transmembrane protein that moves ions across a plasma membrane against their concentration gradient. Such ion pumps, sometimes also known as ion transporters, can use energy from a variety of sources, including ATP or the concentration gradient of another ion (sometimes called an "ion exchanger"). For a more detailed description of one particular kind of ion pump, see Na+/K+-ATPase.

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de:Ionenpumpe
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