4. The resting Trans membrane potential (Vm) of a nerve axon is essential for signal
generation. Instantaneous elimination of which of the following would most rapidly bring
Vm close to 0 mV?
A. Active transport of K+ out of the cell
B. Active transport of Na+ out of the cell
C. Concentration gradient for Na+
D. High membrane permeability to K+
E. High membrane permeability to Na+
1 Page