Across
- 4. A type of pathogen that needs a host to reproduce.
- 5. Tiny air sacs in lungs.
- 7. Plants make their food by __________.
- 9. Gas taken in during photosynthesis.
- 10. The organ that makes bile and stores glycogen.
- 13. A blood vessel that carries blood away from the heart.
- 14. An organelle in a plant that carries out photosynthesis.
- 15. Where aerobic respiration happens.
- 18. The control centre of a cell.
- 19. The liquid part of the blood
- 20. A cell that has no nucleus.
- 21. The liquid that carries oxygen around the body.
Down
- 1. The sugar made in photosynthesis.
- 2. An organism that causes disease.
- 3. Gas released during respiration.
- 6. The name of the enzyme that breaks down starch.
- 8. Food is broken down into small soluble molecules.
- 11. A cell organelle used to release energy.
- 12. Plants store glucose as _______.
- 16. Organelle used to keep a cells shape.
- 17. Type of respiration without oxygen.