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