Ion channel: Difference between revisions
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Ion channels are [[Hydrophllic|hydrophilic]] pores in a plasma membrane | Ion channels are [[Hydrophllic|hydrophilic]] pores in a [[Plasma membrane|plasma membrane]]<font>. T</font>hey are gated which means they are only open when stimulated, for example by voltage. The channels are also selective, allowing only some [[Ions|ions]] to pass; for example [[Sodium|sodium]] or [[Potassium|potassium]]<ref>Alberts,Molecular Biology of the cell 5th edition,2008,page 668</ref><ref>Alberts,Molecular Biology of the cell 5th edition,2008,page 668</ref>. Ion channels can be classed into three main families: [[Voltage-gated ion channels|voltage gated ion channels]], [[Ligand gated ion channels|ligand gated ion channels]] and [[Mechanically gated ion channles|mechanically gated ion channles]]<ref>Lyons. I (2011). Biomedical Science Lecture Notes. Oxford: Wiley-Blackwell. 82.</ref>. | ||
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Latest revision as of 15:39, 5 December 2017
Ion channels are hydrophilic pores in a plasma membrane. They are gated which means they are only open when stimulated, for example by voltage. The channels are also selective, allowing only some ions to pass; for example sodium or potassium[1][2]. Ion channels can be classed into three main families: voltage gated ion channels, ligand gated ion channels and mechanically gated ion channles[3].