The Nernst potentials for Na⁺and K⁺are -65 mV and -90 mV, respectively. The cell has a resting potential of -70 mV. Ignoring Cl⁻, what can you conclude for the membrane?
a) It is impermeable to Na⁺ and K⁺
b) It is permeable to Na⁺and impermeable to K⁺
c) It is impermeable to Na⁺ and permeable to K⁺
d) It is permeable to both Na⁺ and K⁺