A cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is A) HCO3-. B) Cl-. C) Ca++. D) Na+. E) K+.

Question

Lucian Lewis

Biology

13 April, 23:33

A cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is A) HCO3-. B) Cl-. C) Ca++. D) Na+. E) K+.

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Answers (1)

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Jair Sweeney · Answer 1

Answer: E) K+

Explanation:

The major cation in the intracellular fluid or cytosol is potassium (K+).

Within the interstitial fluid, the major cation is sodium (Na+) and the major anion is chloride (Cl-).

They all play an important role in maintaining homeostasis (the ability to maintain a relatively stable internal state that persists despite changes in the world outside).