Across
- 4. cells break down molecules to release energy without using oxygen.
- 5. a tiny cell part.
- 7. cell takes in something.
- 9. controls what goes in and out of the cell.
- 10. diffusion of water molecules through a selectively permeable membrane.
- 12. stores food, water, wastes and enzymes.
- 13. explanation of the relationship between cells and living things.
- 14. cell gets rid of something.
Down
- 1. any substance that can't be broken down.
- 2. strength and support for the cell.
- 3. where the 2nd stage of respiration takes place.
- 6. the maintenance of stable internal conditions in an organism.
- 8. basic unit and structure and function in living things.
- 11. control center of the cell.
- 15. two or more elements combined.