Which Ion(s)would Have a Positive Equilibrium Potential? (Assume a Resting

question 92

Multiple Choice

Which ion(s) would have a positive equilibrium potential? (Assume a resting membrane potential (Vm) of - 70mV.)

• A)X+, whose [ECF] is 120 mM and [ICF] is 30 mM
• B)A- , whose [ECF] is 100 mM and [ICF] is 100 mM
• C)B- , whose [ECF] is 140 mM and [ICF] is 30 mM
• D)both X+ and B- ions
• E)X+, A- , and B- ions

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