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Q: Which type of molecules cross the membrane in osmosis?
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What is a movemnt of water molecules through a seletively perneable cell membrane?

This special type of diffusion is called osmosis.


What type of membrane is required for osmosis?

A selectively permeable membrane


Why is osmosis special type of diffusion?

Osmosis is considered a specialised type of diffusion because it ONLY involves water passing from a region of high water potential to an area of low water potential through a partially-permeable membrane. Osmosis takes place primarily in our small intestines, where water is absorbed.


What type of transport is used to move molecules from a region of low concentration to a region of high concentration?

Without a cell membrane involved, this is just simple diffusion. If a cell membrane is involved, it is osmosis.


A type of passive diffusion where water moves through a semipermeable membrane toward an area of higher solute concentration is called?

I assume you're talking about Osmosis, but I believe there are actually other similar processes as well.


How is osmosis related diffusion?

Osmosis and diffusion are similar in that there is a net movement of molecules from a high concentration of those molecules to a lower concentration. Osmosis is a special type of diffusion that deals with the movement of water only. Osmosis also deals with a semipermeable membrane (like our cell membranes). Diffusion can occur anywhere such in a glass of water when you add sugar but it can occur around cells.


How is active transport diffrent from osmosis?

Active transport occurs when molecules are moved from an area of low concentration to an area of high concentration. The cell membrane acts as a semi-permeable barrier during the process. Energy is required for active transport. Osmosis is a type of passive transport. Passive transport is similar to active transport except it requires no energy and molecules move from an area of high concentration to an area of low concentration. Osmosis occurs only if the molecules moving across the cell membrane are WATER molecules.


How do you describe osmosis?

A special type of diffusion through a membrane


Osmosis can be defined as?

Osmosis is a type of passive transport that occurs when water diffuses through a cell membrane.


Give the difference between diffusion and osmosis?

diffusion- it is the type of passing of liquid from one part to another. it has semi-permeable membrane to pass the liquid. osmosis-it is the type of passing liquid but it has no membrane.


Can osmosis occur in the absence of menbrane?

Osmosis is a type of diffusion that occurs with a semi permeable membrane. It can therefore not occur without a membrane because that is what differentiates it from diffusion.


How do diffusion and osmosis differ from one another?

Diffusion and osmosis differ because diffusion is the process by which molecules spread out, or move from areas with high concentration to low concentration, and osmosis is the diffusion of water. Osmosis is a type of diffusion relating to water. It is usually used to describe the diffusion of water across a membrane (such as the cell membrane). Osmosis is also defined as the flow of solvent from a region of higher pressure toward a region of low pressure.