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Active Transport - Physiology (view source)
Revision as of 14:07, 28 August 2008
, 14:07, 28 August 2008→Development of Potential Energy
=====Development of Potential Energy=====
=====Development of Potential Energy=====
When sodium is pumped out of cells against a concentration gradient it gathers potential energy. If ion channels are present to allow the sodium to re-enter the cell passively then this energy is released. It is this energy which is used to power. '''Secondary Active Transport'''.
When sodium is pumped out of cells against a concentration gradient it gathers potential energy. If ion channels are present to allow the sodium to re-enter the cell passively then this energy is released. It is this energy which is used to power '''secondary Active Transport'''.
===Secondary Active Transport===
===Secondary Active Transport===