Resting Membrane Potential Flashcards
1
Q
When a neuron is at rest, the cell mebrane is?
A
POLARIZED- Ions are unequally distributed b/w the ICF &ECF
2
Q
Sodium Potassium Pump:
A
Maintains the resting membrane state
Acts as a gated ion channel
3
Q
The soduim Potassum pumps out:
A
3 sodium ions into the ECF
4
Q
The sodium exchanges?
A
3 sodium ions into the ECF for 2 potassium ions into thr ICF
5
Q
The end result?
A
a greater concentration of sodium into the ECF (NET-POS)
a greater concentration of potassium into the ICF (NET-NEG)
6
Q
The NA/K pump consumes energy:
A
1 ATP for each exchange cycle
