Across
- 2. speeds up chemical reactions without being used up (6 letters)
- 6. where gas exchange (in animals) takes place (7 letters)
- 7. organ that pumps blood around the body (5 letters)
- 9. cells that line the roots to maximise uptake of water (13 letters - 3 words)
- 11. begins a food chain. can make its own food from photosynthesis.(8 letters)
- 12. a type of rock formed from the cooling of magma or lava (7 letters)
- 13. enzyme that breaks down proteins into amino acids
- 14. piece of equipment used in sampling (7 letters)
- 15. basic unit of living organism (4 letters)
- 17. a solution used to test for presence of proteins in food (6 letters)
- 18. a group of similar cells working together to perform a function
Down
- 1. release of energy from glucose (11 letters)
- 3. a type of rock formed from other rocks being put under high pressure and temperature (11 letters)
- 4. gas that makes up most of the atmosphere (8 letters)
- 5. where photosynthesis takes place (11 letters)
- 8. a solution used to test for the presences of starch (6 letters)
- 10. where gas exchange (in plants) takes place (7 letters)
- 16. carry blood to heart