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Visitor 1548674235 posted an answer
10 months, 7 days ago

The electric activity of a cell, in neurons, for example, depends on the different concentrations of positive and negative ions between the inner and the outer surfaces of the cell membrane. Mineral salts are responsible for that voltage.

The cell membrane of a non-excited cell normally has a negative inside and a positive outside. This electrical situation is maintained by ion transport across the membrane.
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