n increase in the membrane permeability to potassium ions results in Blank______.Multiple choice question.hyperpolarizationdepolarization

Analyzing the Question

1. Understanding Membrane Permeability: An increase in membrane permeability to potassium ions (K⁺) means that more potassium ions can flow out of the cell.

2. Effects on Membrane Potential: When potassium ions exit the cell, they carry positive charge away, leading to a more negative internal environment compared to the outside.

Applying Relevant Concepts

• Resting Potential: The resting membrane potential is typically around -70 mV. If K⁺ permeability increases, the cell's interior becomes even more negative.

3. Hyperpolarization vs. Depolarization:
   • Hyperpolarization: This occurs when the membrane potential becomes more negative than the resting potential.
   • Depolarization: This occurs when the membrane potential becomes less negative (more positive) than the resting potential.

Drawing a Conclusion

Given that an increase in potassium permeability leads to more K⁺ exiting the cell, the internal environment becomes more negative, which aligns with hyperpolarization.

Final Answer

Hyperpolarization.