Across
- 1. building unit of PM
- 3. a lipid that changes the fluidity of PM
- 7. the smallest living unit of organisms
- 9. a primitive type of cell
- 11. the cell division of advanced cells
- 12. something produced at E.R
- 13. the DNA in the nucleus could be called ...
Down
- 2. ...... protein that doesn't cross the membrane
- 4. the region of DNA in primitive cells
- 5. addition of sugar to a compound
- 6. structure for motion in some cells
- 8. any cell in the body that has no sexual function
- 10. protein-making machine