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Which Is True About Neuronal Membrane Electrical and Concentration Gradients

Question 26

Multiple Choice

Which is true about neuronal membrane electrical and concentration gradients at the peak of the action potential?


A) The electrical gradient is in a direction that would tend to move K+ out of the cell.
B) The concentration gradient for K+ is in a direction that would tend to move it into the cell.
C) The concentration gradient for K+ greatly increases compared to at rest.
D) The concentration gradient for Na+ is in a direction that would tend to move it out of the cell.
E) The electrical gradient for Na+ is in a direction that would tend to move it into the cell.

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