Theoretically, a recognized member of the modern state system possessing formal sovereignty and occupied by a people who see themselves as a single, united nation. Most nations and states aspire to parlance, nation-state is used as a synonym for country or state.
In biology, depolarization is a decrease in the absolute value of a cell's membrane potential. Thus, changes in membrane voltage in which the membrane potential becomes less positive or less negative are both depolarizations.
Depolarization of a nerve cell is caused by. A. the sodium potassium pump. B. sodium ions entering the cell. C. the opening of the potassium gates. D. a return of membrane potential to -60mV. 22. Depolarization of an axon results from the movement of. A. sodium ions.