Oxygen and carbon dioxide move into and out of cells by diffusion.
Name the part of a cell that oxygen must cross to get into the cell.
A cell is respiring. Name the gas that diffuses into the cell and name the gas that diffuses out of the cell.
Give one example of a substance, other than a gas, that moves into or out of cells by diffusion.
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.