Across
- 2. Respiration without oxygen
- 5. Holes on the underside of a leaf
- 9. Chemical used to test for starch
- 10. The blood cell that helps fight microbes
- 12. Plants use light energy to carry out this process
- 13. The movement of water
- 14. Controls the cell activities
Down
- 1. Substances that speed up chemical reactions
- 3. A chemical reaction that produces energy
- 4. Vaccines contain ....... or weakened microbes
- 6. Substances taken to kill bacteria
- 7. Colour iodine changes to it starch is present
- 8. The movement of gases from a high to low concentration
- 11. Respiration with oxygen
- 15. Photosynthesis increases if .............. intensity increases