<P> The Na + / K + - ATPase helps maintain resting potential , effect transport , and regulate cellular volume . It also functions as a signal transducer / integrator to regulate MAPK pathway , ROS , as well as intracellular calcium . In most animal cells , the Na + / K + - ATPase is responsible for about 1 / 5 of the cell 's energy expenditure . For neurons , the Na + / K + - ATPase can be responsible for up to 2 / 3 of the cell 's energy expenditure . </P>
<P> The Na + / K + - ATPase helps maintain resting potential , effect transport , and regulate cellular volume . It also functions as a signal transducer / integrator to regulate MAPK pathway , ROS , as well as intracellular calcium . In most animal cells , the Na + / K + - ATPase is responsible for about 1 / 5 of the cell 's energy expenditure . For neurons , the Na + / K + - ATPase can be responsible for up to 2 / 3 of the cell 's energy expenditure . </P>
the na / k pump helps a muscle cell maintain a state of
the na / k pump helps a muscle cell maintain a state of
resting potential
resting potential