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?
Well, to find the reciprocal of 3/4, we simply flip it upside down! So the reciprocal of 3/4 is 4/3. And no, I didn't flip while saying that!
To find the reciprocal of a fraction, you simply need to flip the numerator and the denominator.
In this case, the reciprocal of 3/4 would be 4/3.
So, the reciprocal of 3/4 is 4/3.