Respuesta :

Answer;

D. Sodium Ions

Explanation;

  • Ions play important and variety of roles in cellular activities.
  • The composition of the cell interior is markedly different from the outside environment of the cell.
  • The dominant positive ion within the cell is potassium with a concentration that is more than 10-fold higher than that of sodium.
  • Outside the cell the major positive ion reverses with sodium as the dominant positive ion.

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