Resting Potential Flashcards
1
Q
What are the 3 types of transmembranes involved in resting potential?
A
sodium potassium pump
voltage gated sodium ion channel
potassium ion channels
2
Q
What happens during the sodium potassium pump?
A
active transport using ATP
pumps 3 sodium ions OUT
pumps 2 potassium ions IN
3
Q
What happens during the voltage gated sodium ion channel?
A
closed
membrane is not permeable to sodium ions
sodium ions cant diffuse through
4
Q
What happens during the potassium ion channels?
A
OPEN
same potassium diffuses out down the electrochemical gradient
doesnt reach equilibrium because of the positive charge outside
