Question

Following are a few definitions of osmosis. Read carefully and select the correct definition.

• A. Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.
• B. Movement of solvent molecules from its higher concentration to lower concentration.
• C. Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane.
• D. Movement of solute molecules from lower concentration to the higher concentration of solution through a semipermeable membrane.

Answer 1

The correct option is A Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.

Osmosis is movement of solvent molecules of a solution from their higher concentration to their lower concentration across a semi-permeable membrane.