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Nerve Cell Potential

Voltages

QuestionAnswer
What is Electrostatic Equilibrium? A STATIC state where the Diffusional tendency is counteracted by the Electrostatic attraction
Which Ions are moving when there is an Electrochemical Equilibrium? NO net MOVEMENT of Ions
What is Equilibrium Potential? VOLTAGE which exists for an Ion when it reaches Electrochemical Equilibrium
At rest, which Ions are most permeable? the Axon membrane is 50-75x more permeable to K+ than Na+
What element of Equilibrium Potential does Permeability affect? Polarization
What element of Equilibrium Potential does Concentration affect? Resting Potential
When Ion Conentration changes what force is also changed? Diffusional Force
What is the INTERIOR Voltage of K+? 150
What is the EXTERIOR Voltage of K+? 5
What is the INTERIOR Voltage of Na+? 15
What is the EXTERIOR Voltage of Na+? 150
Created by: Kristel
 

 



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