The Resting Membrane Potential/Quiz

{What are the 3 main factors that produce and maintain the Membrane potential? - Donnan Equilibrium, Membrane selectivity, concentration of ions. + Membrane selectivity, Active transport, Donnan Equilibrium. - Membrane selectivity, Donnan Equilibrium, Excess negative charge. - Active transport, Excess negative charge, concentration of ions.
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{The Nernst equation is used to obtain an accurate value for Em? - TRUE. + FALSE.
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{What is the most imporatnt factor in setting the resting membrane potential? + K+ concentration gradient - Concentration of ion - Na+ permeability - Active transport
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{Using the Nernst equation calculate the Ek+ if the intracellular concentration is 410 mmol/l and the extracellular is 22mmol/l assuming that the temperature is 20oC. What is your answer? - +69 - -79 + -74 - +54
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{What would the units be for the product from the Nernst equation? + mV-millivolts - A-Amps - C-Coulombs - Ion/Sec
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