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A comment on Our ancestor’s ‘leaky’ membrane answers big questions in biology. Parent comment
http://biocadmin.otago.ac.nz/pic/ATPaseanim.gif
Although it's more like a turbine than a crank. And if you're increasing the degree of a gradient of charged particles above what happens naturally, you're supercharging it!
http://biocadmin.otago.ac.nz/pic/ATPaseanim.gif
Although it's more like a turbine than a crank. And if you're increasing the degree of a gradient of charged particles above what happens naturally, you're supercharging it!