Asked by Toffe Wilhelmsson on Jul 06, 2024
Verified
If the charge difference across the plasma membrane is decreased,
A) the potential difference across the plasma membrane does not change.
B) the membrane potential is more positive.
C) the change is called hyperpolarization.
D) negative proteins can leave the cell.
E) the membrane potential is more negative.
Plasma Membrane
The semipermeable membrane surrounding the cytoplasm of a cell, controlling the movement of substances in and out of the cell.
Potential Difference
Difference in electrical potential, measured as the charge difference across the plasma membrane.
Hyperpolarization
An increase in a cell's membrane potential, making it more negative and less likely to fire an action potential.
- Acquire knowledge on the configuration and duties of the plasma membrane in neurons.
Verified Answer
DC
davit chanyoshviliJul 06, 2024
Final Answer :
B
Explanation :
When the charge difference across the plasma membrane decreases, it means that the inside of the cell becomes less negative relative to the outside. This results in the membrane potential becoming more positive. Hyperpolarization refers to an increase in the membrane potential, making the inside of the cell more negative, which is not the case here. Negative proteins typically cannot leave the cell due to their size and the selective permeability of the plasma membrane.
Learning Objectives
- Acquire knowledge on the configuration and duties of the plasma membrane in neurons.