Question

The sodium and potassium minerals help in

• A. Maintaining body balance
• B. Maintaining electrical activity of the nerves
• C. Maintaining blood circulation
• D. Maintaining balance between intracellular and extracellular fluids

Answer 1

The correct option is B Maintaining electrical activity of the nerves

The important ions of the nervous system are sodium and potassium (both have 1 positive charge). The sodium and potassium ions are pumped in opposite directions across the membrane building a chemical and electrical gradient for each. These gradients can be used to drive other transport processes and maintains the electrical activity of the neurons.
Therefore, the correct answer is option B.