Osmosis is the movement of

  1. sugar molecules through a membrane
  2. water molecules through a partially permeable membrane
  3. ions using energy
  4. any particles against a gradient
Answer

B) water molecules through a partially permeable membrane

Osmosis refers only to water. O Level Biology · Topic 3 Movement into and out of Cells · 3.1 Diffusion and osmosis

Biology MCQ · More O Level Biology: Movement into and out of Cells MCQs · Practise