Dialysis tubing filled with sugar solution is placed in water. The tubing swells because

  1. water leaves by osmosis
  2. sugar leaves by active transport
  3. sugar enters by diffusion
  4. water enters by osmosis
Answer

D) water enters by osmosis

Water moves into the lower water potential inside. 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