Across
- 1. the control centre of the cell
- 3. this requires water, oxygen and warmth
- 4. this organ produces hydrochloric acid
- 7. a chemical that makes leaves green
- 12. able to digest both plant and animal tissue
- 13. a watery substance which fills most of the cell
- 15. cell have lots of chlorophyll for trapping sunlight energy which is used to produce sugars in the process of photosynthesis
Down
- 2. sugars and starches
- 5. membrane the external barrier of a cell
- 6. sugar molecules
- 8. the lines on leaves
- 9. special holes on the underside of the leaf
- 10. part of a plant cell
- 11. internal structures of cells
- 14. fats and oils