| Front | Describe how oxygen in air in the alveoli enters the blood in capillaries. ( 2 marks) |
|---|---|
| Back | Diffusion; Across (alveoli) epithelium / (capillary) endothelium; |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Exchange efficient substances capillaries linked rate blood flow
Previous card: Pressure air lungs thorax explain downward movement diaphragm
Up to card list: AQA Biology Flashcards