Resting potential Flashcards
1
Q
Which ions are actively pumped into and out of the axon?
A
3x Na+ ions are actively pumped out of the axon
2x K+ ions are actively pumped into the axon
2
Q
What are the sodium and potassium ions been pumped out of and into the cell with?
A
Intrinsic protein - sodium potassium pump
3
Q
What do the sodium ions diffuse down back into the axon?
A
Diffuse down an electrochemical gradient
4
Q
Are the voltage gated sodium ion channels open or closed?
A
Closed
5
Q
Are the voltage gated potassium ion channels open or closed?
A
Open
Allowing potassium ions to diffuse out of the axon
6
Q
What is the resting potential across the membrane?
A
-70mV
7
Q
Which is the more negative side; inside or outside of the axon?
A
Inside of the axon is more negative
