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Whether it's charged or not, hydrophilic, hydrophobic and its size.

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11y ago

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Related Questions

Does transported substances never physically cross the plasma membrane in endocytosis?

In endocytosis, transported substances are enclosed in vesicles formed from the plasma membrane, which do physically cross the plasma membrane. These vesicles then transport the substances into the cell.


Why can oxygen easily cross the plasma membrane but sodium ions are unable to cross the plasma membrane?

Oxygen is a small, nonpolar molecule that can cross the plasma membrane via simple diffusion. Sodium ions, on the other hand, are charged and larger molecules that cannot easily pass through the hydrophobic interior of the plasma membrane. Sodium must rely on specific transport proteins like ion channels or pumps to cross the membrane.


How do glucose molecules cross a plasma membrane?

Facilitated Diffusion


What are the compounds find it difficult to cross the plasma membrane?

lipid and protien


What part of the membrane indicates how easy it is for substances to cross?

Permeability


What process does oxygen and carbon dioxide use to cross the plasma membrane?

diffusion


What cell may transport a substance if the substance is too large to cross the membrane?

Vescicles


What molecules can freely cross the plasma membrane?

Proteins, Carbohydrates, and Cholesterol. (Check out, 'fluid mosaic')


How water cross the plasma membrane?

I think it's cytoplasme, but I don't exactly know.


Is an ability of a plasma membrane to allow some substance to cross across the membrane more easily than others?

Yes, the ability of a plasma membrane to allow some substances to cross more easily than others is called selective permeability. This is due to the presence of specific transport proteins and channels that facilitate the movement of certain molecules while restricting others. The lipid bilayer of the membrane also plays a role in regulating which substances can pass through.


Which substances are able to cross the membrane, and what determines their ability to do so?

Certain substances, such as small molecules and ions, are able to cross the cell membrane. The ability of a substance to cross the membrane is determined by its size, charge, and solubility in the lipid bilayer of the membrane.


What depends on a molecule that can cross the plasma membrane?

The size, charge, and hydrophobicity of a molecule determine its ability to cross the plasma membrane. Small, nonpolar, and uncharged molecules can typically pass through the membrane via simple diffusion, while larger, charged, or hydrophilic molecules may require transport proteins or channels to facilitate their movement.