During osmosis, flow of water through a semipermeable membrane is:

Options

A. from solution having lower concentration only
B. from solution having higher concentration only
C. from both sides of semipermeable membrane with equal flow rates
D. from both sides of semipermeable membrane with inequal flow rates

Answer

4

Explanation

Osmosis involves net diffusion of volatile solvent through a semipermeable membrane either from pure solvent into dilute soln or from dilute solution into concentrated solution on account of flow of solvent from both sides of semipermeable membrane with unequal flow rates.