How is the normal concentration of sodium and potassium relative to intracellular fluid and interstitial fluid maintained by the body? A. Sodium-potassium pump B. Sodium and potassium carrier-mediated channels C. Sodium and potassium concentration gradient D. Sodium and potassium leakage channels

How is the normal concentration of sodium and potassium relative to intracellular fluid and interstitial fluid maintained by the body? A. Sodium-potassium pump B. Sodium and potassium carrier-mediated channels C. Sodium and potassium concentration gradient D. Sodium and potassium leakage channels

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter29: Neural Control

Section: Chapter Questions

Problem 9SA

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

How is the normal concentration of sodium and potassium relative to intracellular fluid and interstitial fluid maintained by the body?

A. Sodium-potassium pump

B. Sodium and potassium carrier-mediated channels

C. Sodium and potassium concentration gradient

D. Sodium and potassium leakage channels

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