sodium potassium pump + definitions
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4 Terms
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depolarization
the sodium ion channel opens the inside of neuron becomes more positive
2
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repolarization
sodium channel closes and the cell becomes negative
3
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hyper-polarization
the inside of the cell is more negative than resting potential due to potassium ion channels closing
4
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sodium potassium pump
3 sodium ions bind to receptors
ATP is hydrolyzed and releases energy, protein then changes shape
sodium ions released
2 potassium ions bond to receptors
ATP molecule binds causing protein to return to original shape
potassium ions released
Note 
Flashcards (20)