Before revision: Characteristic concentrations of potassium in model organisms are: 30-300mM in E. coli, 300mM in budding yeast, 100mM in mammalian cell and 4mM in blood plasma.
After revision: Characteristic concentrations of potassium in model organisms are: 30–300mM in E. coli, 300mM in budding yeast, 100mM in mammalian cell and 4mM in blood plasma.