Which of the following is the best situation for maintaining homeostasis? a. Extracellular fluid should be hypotonic to intracellular fluid. b. Extracellular fluid should be hypertonic to intracellular fluid. c. Tonicity has no impact on homeostasis. d. Extracellular fluid should be isotonic to intracellular fluid.

The answer is D: Extracellular fluid should be isotonic to intracellular fluid.

Explanation:

Solutions are said to be isotonic if they ahave the same osmotic pressure both in and out of the semipermeable membrane, as well as the concentration of solute on either side.

Option D.

Extracellular fluid should be isotonic to intracellular fluid.

Explanation:

Homeostasis refers the way and ability living organisms regulate their internal environment to be abele to survive.

Extracellular fluids refers to fluid outside the body cells. It is important organisms keep their extracellular fluid constant especially with regard to osmotic pressure, pH, temperature.

Extracellular fluid should be isotonic or have the same osmotic pressure with the intracellular fluids to maintain osmosis.

Intracellular fluid is fluid within the body cells.

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