Across
- 7. invades and reproduces inside a cell
- 11. rigid structure surrounding cell for support
- 12. smooth and rough passageways
- 14. found in plant cells for photosynthesis
- 15. single-cell organism that lacks a nucleus
- 16. jellylike substance inside cell
- 18. helpful
- 19. eukaryotes not classified as animals or plants
- 20. living thing can only be seen with microscope
Down
- 1. sac inside cell for storage
- 2. one-celled organisms more complex than bacteria
- 3. abnormal state of the body
- 4. makes proteins
- 5. smallest unit of life
- 6. causing harm
- 8. membranes that help package proteins
- 9. control center of the cell
- 10. microorganism that causes disease
- 13. thin barrier on the outside of the cell
- 17. power house of the cell