Across
- 5. is a tough outer layer covering the cell
- 8. some of these are made of a single cell
- 10. organisms made up of many cells
- 12. separates the inside from the outside
- 13. to describe any part of cell that is enclosed by membrane
- 14. an instrument which makes an object appear bigger than it is
Down
- 1. contained inside the cell membrane is a gelatin-like material called ________
- 2. it makes the plant cell green
- 3. smallest in a living organism
- 4. in a eukaryotic cell the genetic material is in a sturcture called ____________
- 6. are the organelles that use oxygen
- 7. these organisms are ____________ and usually too small for you to see
- 9. the genetic material is a nucleus
- 11. milk that turned sour contained large numbers of tiny single-celled organisms called