Gas Exchange Systems
- Explain adaptations in various gas exchange systems: in single-celled organisms, insects’ tracheal systems, fish gills, and dicotyledonous plants’ leaves
- Single-celled organisms exchange gas across their body surface
- Insects’ tracheal system comprises tracheae, tracheoles, and spiracles
- Fish exchange gas across gills consisting of gill lamellae and filaments; counter-current principle is involved
- Dicotyledonous plants use leaves for gas exchange, specifically through mesophyll and stomata
- This knowledge can be applied to any system
- You will receive needed information to apply your knowledge to new concepts
- It’s advised to draw and label diagrams of these structures for revision.