Multiple choice

Osmosis is defined as the process in which:

  1. wter diffuses from lower concentration to higher concentration

  2. solutes diffuse from lower concentration to higher concentration

  3. active transport of ions take place

  4. passive transport of ions take place
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Osmosis is the diffusion of WATER molecules from a region of lower solute concentration (higher water concentration) to higher solute concentration (lower water concentration) across a semipermeable membrane. Option A correctly states this, though it contains a typo ('wter' should be 'water'). Options B, C, D incorrectly refer to solutes or active transport.

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