Question

2
which important physiological function is carried out when the minerals sodium and potassium work together?
a. osmotic flow regulation
b. oxygen transport
c. nerve transmission
d. blood clotting

Explanation:

• Option A: Sodium and potassium are key in regulating osmotic flow (fluid balance) across cell membranes. They help maintain the right concentration of fluids inside and outside cells, which is a major physiological function when they work together.
• Option B: Oxygen transport is mainly done by hemoglobin in red blood cells, not related to sodium - potassium cooperation.
• Option C: While sodium and potassium are involved in nerve transmission (via action potentials), the question asks for the function when they work together in a more general physiological sense. Osmotic flow regulation is a more direct and primary function of their combined action in maintaining fluid balance throughout the body.
• Option D: Blood clotting involves factors like platelets and clotting proteins, not sodium and potassium.

Answer:

A. Osmotic flow regulation