An isolated skeletal muscle fibre is studied at room temperature,

PHYSICS · Subjective · Fermi University Physics · Biophysics & Medical Physics · Molecular machines, transport and bioenergetics · Molecular machines, transport and bioenergetics

Life at Thermal Energy, Ch The membrane: barrier, capacitor and pump

Problem

An isolated skeletal muscle fibre is studied at room temperature, T=298 KT = 298\,\mathrm{K}, where kBT/e=25.7 mVk_BT/e = 25.7\,\mathrm{mV}. Its sodium concentrations are cin=15 mMc_{\rm in} = 15\,\mathrm{mM} and cout=150 mMc_{\rm out} = 150\,\mathrm{mM}, and sodium has valence z=+1z=+1. Calculate the sodium Nernst potential ENaE_{\rm Na} under these conditions.

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