Membrane capacitive ion budget
= Membrane capacitive ion budget
{title2=$\Delta c=C_mA\Delta V/(zF\mathcal V)$}
When a single <ion> species supplies the net charging of a <cell membrane>, its bulk <concentration> increment is $\Delta c=C_mA\Delta V/(zF\mathcal V)$. Opposing ionic <Electric currents> can make gross entry exceed this minimum net <electric charge> budget. A large <membrane potential> change can coexist with approximate bulk <electroneutrality>.