How is the Sodium Potassium Pump stimulated for phosphorylation?
3 Na+ ions bind inside the pump
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What happens when the pump is phosphorylated?
It changes shape, decreasing the affinity for the Na+ ions, expelling them outside of the cell
2 of 5
What happens after the Na+ ions are expelled from the pump?
The new shape gives a higher binding affinity to K+ ions, 2 can fit into the pump from the extracellular side
3 of 5
What does the binding of the K+ ions trigger?
The release of the phosphate group
4 of 5
What does the release of the phosphate group from the pump cause?
The pump to change shape again, reducing the affinity for K+ ions, expelling those inside the cell and having a higher affinity for Na+, starting the cycle again.
5 of 5
Other cards in this set
Card 2
Front
What happens when the pump is phosphorylated?
Back
It changes shape, decreasing the affinity for the Na+ ions, expelling them outside of the cell
Card 3
Front
What happens after the Na+ ions are expelled from the pump?
Back
Card 4
Front
What does the binding of the K+ ions trigger?
Back
Card 5
Front
What does the release of the phosphate group from the pump cause?
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