Across
- 4. fluid portion of a cell
- 5. thin, flexible barrier surrounding all cells
- 7. store their DNA in a nucleus
- 8. control center of the cell
- 10. has no nucleus
- 11. a complex of DNA bound to proteins
- 12. concluded that all plants are made of cells
- 14. allow material to move into and out of the nucleus
- 15. concluded that new cells could be produced only from existing cells
- 17. given credit for discovering the first cell
- 18. type of prokaryote
Down
- 1. most dense region of the nucleus; ribosome assembly begins here
- 2. contain the genetic information that is passed down
- 3. all living things are made of cells; cells are the basic units of structure and function in living things; new cells are produced from existing cells
- 6. surrounds the nucleus and is made of two membranes
- 9. smallest living unit of any organism
- 13. given credit for observing the first living cell
- 16. stated that all animals were made of cells