Action potentials Flashcards
1
Q
During resting potential, how many sodium ions are pumped out?
A
3
2
Q
During resting potential, how many potassium ions are pumped in?
A
2
3
Q
How many molecules of ATP are required for 3 sodium ions to be pumped out and 2 potassium ions to be pumped in?
A
1
4
Q
What is the potential difference at the resting potential?
A
-70mV
5
Q
During resting potential, would you say that the membrane is depolarised, polarised, or hyperpolarised?
A
Polarised
6
Q
What is the threshold potential difference during depolarisation?
A
-55mV
7
Q
What is the potential difference from the outside to the inside of the axon during depolarisation?
A
+40mV
8
Q
During hyperpolarisation, what potential difference is reached?
A
-90mV
