A potato cylinder was left in a sugar solution for 30 minutes. Its mass increased. Which statement explains the increase in mass?
The solution was more dilute than the cells, so water entered them
The solution was more dilute than the cells, so sugar entered them
The solution was more concentrated than the cells, so water entered them
The solution was more concentrated than the cells, so sugar entered them
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.