Gas Exchange in The Lungs Worksheet

About this printable

This A4 worksheet focuses on gas exchange at the alveolus: labelling structures, explaining the direction of oxygen and carbon dioxide movement, completing sentence prompts, filling a simple partial-pressure (kPa) data table and answering short-answer questions. It includes a large coloured alveolus diagram with numbered labels, a two-row gas-movement tick box, an apply/true–false section and a 'key structures' recap with small illustrations. Use it as guided practice or independent consolidation after you have taught diffusion, blood gases and the roles of capillaries/hemoglobin.