A potato cylinder loses 0.6 g after being left in a sugar solution. Its initial mass was 4.0 g.
Which option gives the percentage loss in mass and the net direction of water movement?
15.0%15.0\%15.0%; water moves out of the cells
15.0%15.0\%15.0%; water moves into the cells
17.6%17.6\%17.6%; water moves out of the cells
17.6%17.6\%17.6%; water moves into the cells
41 exam-style questions on Edexcel GCSE Biology 1.4 Transport across cell membranes, covering 1.4.1 Transport into and out of cells and 1.4.2 Percentage gain and loss in osmosis. Each one has a worked solution and a mark scheme showing where the marks go.