Jit equilibrium the concentrations of Cl- inside and outside a cell are 8 mmol/L and 120 mmol/L, respectively. The equilibrium potential for Cl- at 37degC is calculated to be:
Ans. D. -71.7mVBy substituting in the Nernst equationEi-Eo=61/-1xlog10120/8=-61x1.176=-71.7mV inside the cell.Note that for Cl-, the value for z (valence) is -1
+4.07 mV
-4.07 mV
+71.7 mV
-71.7 mV
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