Diff: 1 Page Ref: 399-400 25) An action potential ________.
A. is essential for impulse propagation
B. involves the influx of negative ions to depolarize the membrane
C. is initiated by potassium ion movement
D. involves impulse propagation dependent on chemically gated ion channels
Answer:A
Diff: 1 Page Ref: 399-400 25) An action potential ________.
A. is essential for impulse propagation B. involves the influx of negative ions to depolarize the membrane C. is initiated by potassium ion movement D. involves impulse propagation dependent on chemically gated ion channels