Asked by Avery Braswell on Jun 26, 2024
Verified
When repolarization of the plasma membrane is complete, the
A) cell dies.
B) cell regenerates.
C) cell no longer has a potential difference across its membrane.
D) cell is no longer responsive.
E) original polarity of the cell is restored.
Repolarization
The process of restoring the resting state in a neuron or muscle cell after depolarization, typically signifying the recovery phase of an action potential.
Plasma Membrane
The lipid bilayer membrane that encloses the cytoplasm of a cell, controlling the movement of substances in and out of the cell.
Polarity
The condition of having distinct and opposite ends or poles, often relating to molecule orientation or cell differentiation.
- Explain the concepts of depolarization and repolarization in the context of muscle action potentials and their relation to muscle contraction and relaxation.
Verified Answer
BU
Benice UaakaJul 01, 2024
Final Answer :
E
Explanation :
Repolarization of the plasma membrane restores the original polarity of the cell, meaning the inside of the cell becomes negatively charged relative to the outside once again, readying the cell for another action potential if necessary.
Learning Objectives
- Explain the concepts of depolarization and repolarization in the context of muscle action potentials and their relation to muscle contraction and relaxation.