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What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
What is the ability of a cell membrane to allow material to pass through it called?
permeability
What is the characteristic of a sell membrane that controls which substances can enter and exit the cell?
The selective permeability, also called semi-permeability, of the membrane controls which substances cant enter and exit the cell.
How is the membrane permeability?
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
How does the membrane potential affect the permeability of a neurons cell membrane?
The membrane potential influences the permeability of a neuron's cell membrane by affecting the opening and closing of ion channels. When the membrane potential changes, such as during depolarization, voltage-gated ion channels open, allowing ions like sodium (Na+) to flow into the cell, increasing permeability. Conversely, during hyperpolarization, channels may close, reducing permeability to certain ions. This dynamic alteration of permeability is crucial for generating action potentials and transmitting signals in the nervous system.
Does an increase in cholesterol affect membrane permeability?
Yes, an increase in cholesterol can affect membrane permeability by making the cell membrane less fluid and more rigid, which can impact the movement of molecules in and out of the cell.
What is the permeability of the cell membranes?
A membrane is selectively permeable.
What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
What is the ability of a cell membrane to allow material to pass through it called?
permeability
What is the characteristic of a sell membrane that controls which substances can enter and exit the cell?
The selective permeability, also called semi-permeability, of the membrane controls which substances cant enter and exit the cell.
How is the membrane permeability?
means that the cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell
How does the membrane potential affect the permeability of a neurons cell membrane?
The membrane potential influences the permeability of a neuron's cell membrane by affecting the opening and closing of ion channels. When the membrane potential changes, such as during depolarization, voltage-gated ion channels open, allowing ions like sodium (Na+) to flow into the cell, increasing permeability. Conversely, during hyperpolarization, channels may close, reducing permeability to certain ions. This dynamic alteration of permeability is crucial for generating action potentials and transmitting signals in the nervous system.
What is the characteristics of a cell membrane controls which substances can enter and exit the cell?
selective permeability
What is the characteristic of a cell membrane that control which substances can enter and exit the cell?
selective permeability
What is the characteristic of a cell membrane that the controls which substances can enter and exit the cell?
selective permeability
What is membrane permeability?
Membrane permeability refers to the ability of molecules, substances, etc. to pass through the membrane. For example, the cell membrane is referred to as 'semi-permeable' because it allows some molecules (such as water) to enter, and stops other molecules (such as sodium ions) from passing through the membrane. If these want to get into the cell, they must then rely on proteins in the cell membrane to let them in.
What is the ability of a cell membrane to allow materials to pass through?
permeability
