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ycow [4]
1 year ago
9

Why do sodium and chloride ions in the extracellular fluid and potassium ions in the intracellular fluid behave as though they w

ere nonpenetrating solutes?
Biology
1 answer:
barxatty [35]1 year ago
5 0

Potassium ions act as if they were nonpenetrating solutes in the intracellular fluid and as sodium, chloride, and ions in the extracellular fluid. they are pumped back out because

<h3>What is the Na+- K+ pump's principal function in preserving the resting membrane potential ?</h3><h3 />

The Na+ K+ -ATPase pump helps living things maintain their osmotic equilibrium and membrane potential. The sodium and potassium withstand concentration gradients. The Na+ K+ -ATPase pump maintains the gradient between a higher concentration of sodium extracellularly and a higher concentration of potassium intracellularly.

  • A change in K+ conductance would have a greater effect on the resting membrane potential than a change in Na+ conductance because the membrane is more permeable to K+.

  • If the extracellular potassium ion concentration decreased, more potassium would leave the cell, causing the electrical gradient across the membrane, or transmembrane potential, to increase. This state is known as hyperpolarization.

Learn more about Na+/K+ Pump here:

brainly.com/question/14101500

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