The Na/K Pump Mechanism
Cut out the pictures and stick them in the correct
sequence.
Cytoplasmic Na+ binds to the Na/K pump.
Na+ binding stimulates the phosphorylation by ATP
Phosphorylation causes the protein to change its
shape, expelling N a+ to the outside.
Extracellular K+ binds to the protein triggering
release of the phosphate group
Loss of the phosphate group restores the proteins
original confirmation
K+ is released and Na+ sites are receptive again and
the cycle repeats.