February 24, 2017

Homework Help: Physics please help

Posted by John on Sunday, February 10, 2013 at 1:37am.

During an action potential, Na^+ ions move into the cell at a rate of about 3x10^-7 mol/m^2*s.

How much power must be produced by the "active Na^+ pumping" system to produce this flow against a +30-mV potential difference? Assume that the axon is 40cm long and 30um in diameter.

Please help me out I am lost. Thanks

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