Question

Select the most correct definition of osmosis.
1. Movement of solvent molecules from its higher concentration to lower concentration.
2. Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane.
3. Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.
4. Movement of solute molecules from lower concentration to higher concentration of solution through a semi-permeable membrane.

Answer 1

Correct Answer - Option 3 : Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.

The correct answer is the Movement of water molecules from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.

• Osmosis is a special type of diffusion action that occurs between two different concentration solutions by a semipermeable membrane.
• In this, the molecules of the solvent move from low to high concentration solution.
• In osmosis, particles flow only in one direction (only solvent particles move).
• Whereas, In diffusion, both solvent and solute particles move in opposite directions.
• The diffusion process is the movement of substances of high to low concentration.
• Diffusion is an important process for living things and it happens in liquids and gases.