Asked by David Lopez on May 05, 2024

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Mr. Miller has been hospitalized for the flu. The flu virus increases membrane permeability to K+. You would expect his cells to ________.

A) depolarize
B) repolarize
C) isopolarize
D) hyperpolarize
E) hypopolarize

Membrane Permeability

The quality of a biological membrane that allows substances to pass through it, controlling the entry and exit of materials.

K+

Potassium ion, an essential electrolyte involved in various body functions including nerve signal transmission and muscle contraction.

Hyperpolarize

A change in a cell's membrane potential that makes it more negative, moving it further away from initiating an action potential.

  • Absorb information regarding the structure and activities of the neuron’s plasma membrane.
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MM
Mercedes MangrumMay 10, 2024
Final Answer :
D
Explanation :
When the flu virus increases membrane permeability to K+, potassium ions move out of the cell, making the inside of the cell more negative compared to the outside. This process leads to hyperpolarization, not depolarization or repolarization. Hyperpolarization is when the membrane potential becomes more negative than the resting potential.