The E_K for a cell is -90 mV and E_Na is +55 mV. At a resting membrane potential of -70 mV and assuming conductances ONLY to Na⁺ and K⁺, A) There is an outward K⁺ current B) There is a net inward current C) There is an net outward current D) g_Na g_K E) None of the above

Question

The E_K for a cell is -90 mV and E_Na is +55 mV. At a resting membrane potential of -70 mV and assuming conductances ONLY to Na⁺ and K⁺, A) There is an outward K⁺ current B) There is a net inward current C) There is an net outward current D) g_Na > g_K E) None of the above

Quizplus · Accepted Answer

The resting membrane potential is closer to E_K than E_Na, indicating a higher conductance to K⁺. Since the membrane potential is more positive than E_K, there is an outward K⁺ current.

The EK for a Cell Is -90 MV and ENa

The E_K for a Cell Is -90 MV and E_Na