Across
- 2. Structures that branch one into each lung to carry air from windpipe into lungs.
- 3. Deoxygenated blood is transported from the heart to the lungs via the _________ artery.
- 5. Anchor plants and absorb nutrients from the soil.
- 6. Part of the flower that produces and contains unfertilised seeds.
- 9. A structure in plant leaves that can open and close to control gas exchange.
- 11. Complete the equation for photosynthesis: carbon dioxide + water --> _______ + oxygen.
- 13. Where gaseous exchange with the capillaries occurs in the lungs.
- 17. Clot together at the site of a wound to seal it shut.
- 19. The five types of bones are: long, short, flat, irregular and ________.
- 20. Part of the flower that contains pollen.
Down
- 1. The organelle that acts as the site of photosynthesis in plants.
- 4. Involuntary muscle that allows blood to be pumped around the body.
- 7. The windpipe, it transports air from the mouth to the lungs.
- 8. A type of white blood cell that engulfs pathogens.
- 10. The only blood vessels to contain valves.
- 12. Connect muscle to bone.
- 14. Connect bone to bone.
- 15. The transport medium of blood.
- 16. The blood vessels with a membrane that is one-cell-thick.
- 18. Carries oxygen-rich blood away from the heart to the rest of the body.