Across
- 4. where enzymes and substrates fit
- 7. single unit
- 8. fats,waxes,steroids
- 9. protects plant cells
- 10. control center of the cell
- 13. composed of DNA
- 15. enzymes,builds and repairs tissues
- 16. make protein
- 17. cell without organelles
- 18. cells with membrane-bound organelles
Down
- 1. DNA
- 2. many units
- 3. composed of cells
- 5. sugar,glucose,starch
- 6. speed up chemical reactions
- 11. reactant in an enzyme reaction
- 12. large molecules
- 14. building blocks of protein