Question

The movement of molecules across a selectively permeable membrane is known as

Answer 1

The movement of molecules across a selectively permeable membrane is known as osmosis

Explanation:

1. Process of spontaneous movement of solvent molecules through a semi-permeable membrane from the region of relatively higher concentration to relatively lower concentration is referred as osmosis.
2. In the process of osmosis, solvent molecules migrate across the semi-permeable membrane, while solute molecules donot move.  
3. The process of osmosis is a physical process. It is dependent on the concentration on the solutions both the sides of membrane and the system gradually attains equilibrium.
4. The permeability through the membrane depends on the size, charge, solubility and some chemical properties of solute and solvent molecules.  

Know more:

Q.1. How does osmosis and diffusion occurs?

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Q.2. Explain osmosis and reverse osmosis.

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Q.3. What is reverse osmosis?  How does the reverse osmosis works?  A well labeled diagram of reverse osmosis.

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