Q. What is the function of mineral salts in the creation of electric tension (voltage) at the cellular level?
The electric activity of the cell, for example, in neurons, depends on the different concentrations of negative and positive ions between the outer and the inner surfaces of the cell membrane. Mineral salts are accountable for that voltage.
The cell membrane of non-excited cell has commonly a positive outer side and a negative inner side. This electrical situation is sustained by ion transport across the membrane.