In a neuron with a resting membrane potential of -65 mV, the distribution of which ion across the neuronal membrane represents the least potential electromotive force?
A)Potassium
B)Chloride
C)Sodium
D)Calcium

Question

Quizplus · Accepted Answer

The resting membrane potential of a neuron is primarily determined by the concentration gradients and membrane permeabilities of potassium and sodium ions. Chloride ions, on the other hand, typically have a concentration gradient that opposes the membrane potential, meaning that they have the least potential electromotive force across the membrane. Calcium ions, although they can contribute to neuronal signaling, are generally found in lower concentrations and are not as heavily involved in establishing the resting membrane potential.

In a Neuron with a Resting Membrane Potential of -65