Asked by Anna
Determine the number of uncompensated ions (both total number and as a
percentage of the bulk ions) required to establish a charge of 100mV across a
membrane of a spherical cell that is 25 μm in diameter. Assume that the total number
of ions inside and outside the cell is .5M (or 500 mM)
Recall the capacitance of a patch of membrane is 1 μF/cm2
Recall that a Farad is the charge (in coulombs) required to establish 1 V of potential, so
the capacitance of a patch of membrane is 10-6 C/ V cm2 .
Also recall that the elemental charge (the coloumbs on 1 ion) is 1.6x10^-19 C.
what is the recipricol of 3/4?
percentage of the bulk ions) required to establish a charge of 100mV across a
membrane of a spherical cell that is 25 μm in diameter. Assume that the total number
of ions inside and outside the cell is .5M (or 500 mM)
Recall the capacitance of a patch of membrane is 1 μF/cm2
Recall that a Farad is the charge (in coulombs) required to establish 1 V of potential, so
the capacitance of a patch of membrane is 10-6 C/ V cm2 .
Also recall that the elemental charge (the coloumbs on 1 ion) is 1.6x10^-19 C.
what is the recipricol of 3/4?
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