A student placed mammalian red blood cells and onion epidermal (plant) cells into separate beakers of distilled water.
State the direction of net water movement for both types of cells and name the passive transport process responsible.
Explain, in terms of cell structures, why the red blood cells swell and burst (lyse), whereas the onion cells do not burst.
30 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.