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)Ca²⁺. D)Na⁺. E)K⁺.

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Quizplus · Accepted Answer

Potassium ions (K+) are more abundant inside the cytosol of a neuron compared to the interstitial fluid outside the neuron. This gradient is crucial for the resting membrane potential and the generation of action potentials in neurons.

A Cation That Is More Abundant as a Solute in the Cytosol