Across
- 4. - A unicellular organism without a nuclear membrane
- 6. - Complex sugar molecule
- 7. - A unit of length equal to one millionth of a meter, used to measure cells
- 8. Acid - Molecule (DNA or RNA) that carries genetic information of a virus
- 9. - Small loop of DNA used for sexual reproduction in some prokaryotes
- 11. - Organelle in eukaryotes that contains the cell’s DNA
- 12. - Describes cell structures (organelles) surrounded by a membrane
- 14. - Region where DNA is found in a prokaryote
- 16. - Outer layer made of polysaccharides
- 17. Cell - The living cell that a virus infects in order to reproduce
- 19. DNA - The form of DNA found in the nucleus of eukaryotic cells
Down
- 1. - Material inside a cell, excluding the nucleus
- 2. - Programmed cell death
- 3. Wall - Rigid layer that supports the cell
- 5. - Membrane-bound structures inside eukaryotic cells
- 9. - Short, hair-like structures on prokaryotes that aid movement or attachment
- 10. - Long, tail-like extension that helps a cell move
- 13. - Microscopic particle that spreads infection by inserting its nucleic acid into host cells
- 15. - Any cell that has a nucleus
- 18. Membrane - Flexible, semi-permeable membrane that allows certain molecules to enter