Two potato cylinders were cut from the same potato. Cylinder J was left in distilled water for one hour. Cylinder K was left in 1.0 mol/dm3 sugar solution for one hour. Cylinder J gained mass and cylinder K lost mass.
Explain the change in mass of cylinder J and the change in mass of cylinder K.
After 24 hours, the mass of each cylinder had stopped changing.
Explain why.
58 exam-style questions on AQA GCSE Biology 1.3 Transport in cells, covering 1.3.1 Diffusion, 1.3.2 Osmosis, and 1.3.3 Active transport. Each one has a worked solution and a mark scheme showing where the marks go.