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What is a membrane protein that allows specific charged molecules to pass through from one side of the membrane to another?
Wiki User
∙ 10y ago
A membrane protein that permits the passage of specific substances is selectively permeable. They allow the solvent as specific solutes to pass through.
Wiki User
∙ 9y ago
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What materials crossed the membrane and why did they cross?
Materials that can cross the cell membrane include small non-polar molecules like oxygen and carbon dioxide, as well as small polar molecules like water. These molecules can freely pass through the lipid bilayer of the membrane due to their small size and compatibility with the hydrophobic environment of the lipid tails. However, larger molecules and charged ions require specific protein channels or transporters to cross the membrane.
What distinguishes facilitated diffusion from simple diffusion?
Simple diffusion allows non-polar molecules to pass through and a little amount of H20. On the other hand, Facilitated diffusion allows ions and polar molecules across the membrane because it contains carrier proteins. It is highly specific to substances it diffuses across the membrane.
Why can oxygen water and carbon dioxide move through the cell membrane but salt and protein cannot?
That depend on size and the charge.Large molecules and charged molecules cannot move freely
What are molecules that do not have opposite charged ends?
Molecules that do not have oppositely charged ends are nonpolar molecules.
Facilitated diffusion moves large molecules through what?
Glucose and polypeptides.
How easy or hard is it for polar molecules to pass through the cell membrane?
Polar molecules are effectively charged molecules. It's hard for them to cross the cell membrane because the membrane is comprised of an uncharged phospholipid bilayer. Charged molecules tend to have specific protein channels that allow them to cross the membrane.
What materials crossed the membrane and why did they cross?
Materials that can cross the cell membrane include small non-polar molecules like oxygen and carbon dioxide, as well as small polar molecules like water. These molecules can freely pass through the lipid bilayer of the membrane due to their small size and compatibility with the hydrophobic environment of the lipid tails. However, larger molecules and charged ions require specific protein channels or transporters to cross the membrane.
What happens during the process of faciliated diffusion?
Facilitated diffusion is a passive transport process where specific proteins in the cell membrane help larger or charged molecules pass through. These proteins act as channels or carriers, allowing molecules to move down their concentration gradient without requiring energy input from the cell. This process is important for the movement of substances like glucose and ions across the cell membrane.
What are the substances that the cell membrane does not allows to pass?
Usually Ions and charged molecules (salts dissolved in water), large polar molecules (glucose), and macromolecules.
What is partly permeable?
A membrane, such as the cell membrane, which allows only certain types of molecules (usually small and non charged ones) to pass through it freeely.
What distinguishes facilitated diffusion from simple diffusion?
Simple diffusion allows non-polar molecules to pass through and a little amount of H20. On the other hand, Facilitated diffusion allows ions and polar molecules across the membrane because it contains carrier proteins. It is highly specific to substances it diffuses across the membrane.
Why can oxygen water and carbon dioxide move through the cell membrane but salt and protein cannot?
That depend on size and the charge.Large molecules and charged molecules cannot move freely
What are molecules that do not have opposite charged ends?
Molecules that do not have oppositely charged ends are nonpolar molecules.
What allows all molecules to pass through cell membrane?
Transport proteins allow charged molecules to pass through the cell membrane. The process of facilitated diffusion, a type of passive transport, allows transport proteins to take charges molecules into the cell.
What is the primary attractive force among the polar molecules in liquid hydrogen chloride?
Polar molecules have a positively charged pole and a negatively charged pole. The positively charged pole of one molecule will attract the negatively charged pole of another molecule, in accordance with Coulomb's Law.
Facilitated diffusion moves large molecules through what?
Glucose and polypeptides.
Why will molecules travel away from one another?
They will travel away from each other if they are similarly charged (+) (+) or (-) (-) They will travel close to each other if they are not similarly charged (+) (-).
