Question

As a result of an experiment following measurements were obtained from a cell:

intracellular Na⁺ concentration of 20 mM,

intracellular K⁺ concentration of 100 mM,

intracellular Cl^- concentration of 60 mM,

intracellular Ca²⁺ concentration of 0.0001 mM,

extracellular Na⁺ concentration of 150 mM,

extracellular K⁺ concentration of 5 mM,

extracellular Cl^- concentration of 120 mM,

extracellular Ca²⁺ concentration of 2 mM.

Using these values calculate equilibrium potential for K⁺ ion in these cells. (RT/F = 26.7 mV, 37^oC; Use original Nernst equation that contain ln)

Answer 1