If the Soma of a Neuron Became More Permeable to Potassium

question 87

Multiple Choice

If the soma of a neuron became more permeable to potassium, which statement below best describes the graded potential that would be generated in the soma?

• A) Potassium would leave the cell, causing the membrane to hyperpolarize.
• B) Potassium is a cation; therefore, it would cause an excitatory depolarization.
• C) Potassium is an inhibitory second messenger; therefore, it would cause amplification of the graded potential.
• D) Potassium would reach its equilibrium potential and the voltage inside the cell would not change.
• E) Potassium would enter the cell, causing the membrane to depolarize and reach threshold.

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