Regarding nerve action potential, which is TRUE?

Question

TuteeHUB · Accepted Answer

hyperpolarisation is due to continuous opening of Na+ channels

TuteeHUB · Answer

normal resting membrane potential is -40mV

TuteeHUB · Answer

initial rapid depolarisation is due to rapid influx of Ca2+ via fast channels

TuteeHUB · Answer

during depolarisation, Na+ permeality is greater than K+ permeality

TuteeHUB · Answer

plateau is formed by slow Ca2+ channels

1.	Regarding nerve action potential, which is TRUE?
A.	normal resting membrane potential is -40mV
B.	initial rapid depolarisation is due to rapid influx of Ca2+ via fast channels
C.	during depolarisation, Na+ permeality is greater than K+ permeality
D.	hyperpolarisation is due to continuous opening of Na+ channels
E.	plateau is formed by slow Ca2+ channels
Answer» D. hyperpolarisation is due to continuous opening of Na+ channels

Discussion