Across
- 1. a small cavity or space in the cell
- 3. sugar which is an important energy source
- 6. gas produced by burning carbon
- 8. A chemical element
- 10. A cell that is strong and found in bones
Down
- 2. the semipermeable membrane around the cell
- 4. the strength to do a physical activity
- 5. a colourless and transparent liquid
- 7. Small structures inside cells
- 9. A ridged laying on the outside of the cell