Resting membrane potential of nerve fibre is close to isoelectric potential of:: (A) Potassium ions, (B) Sodium ions, (C) Chloride ions, (D) Magnesium ions
Answer is A. RMP of nerve = -70mVEp of sodium = + 60mVEP of potassium = - 90mV Ep of chloride = -70mV (Same as RMP not closest )