Multiple choice

Which of the following terms describes the movement of water from a region of higher concentration to a region of lower concentration through a semi-permeable membrane?

  1. Diffusion

  2. Osmosis

  3. Endocytosis

  4. Plasmolysis

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Osmosis is the passive movement of water molecules across a semi-permeable membrane from a region of higher water concentration (lower solute concentration) to lower water concentration (higher solute concentration). Diffusion is general molecular movement, endocytosis involves engulfing material, and plasmolysis is plant cell shrinkage due to water loss.