Question

A cell’s membrane is permeable to K+, Na+, and Cl─.    Use the following information to determine...

A cell’s membrane is permeable to K+, Na+, and Cl.    Use the following information to determine

the equilibrium potential of this cell.    Assume that the cell is at 37º C.

K+

Na+

Cl

Permeability (m/s)

100

1

1000

Outside Concentration (mM)

4.5

145

116

Inside Concentration (mM)

150

12

4.2

           

[mM = 0.001 Moles / liter.]

70.0     mV

-14.3 mV

-60.5 mV

-88.3 mV

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