Across
- 2. compound
- 6. barrier
- 9. found in the cell nucleus
- 12. hydrogen reacting with oxygen
- 13. speeds up metabolism
- 15. absorbed
- 16. connecting
- 18. maintaining a ________ is very important for your health.
- 19. bond that holds atoms together
- 21. blood vessels
Down
- 1. stable
- 3. reactants of an enzyme-catalyzed reaction
- 4. weak bond
- 5. atoms; negatively or positively charged
- 7. speeds up the reaction
- 8. FE
- 10. attachment
- 11. ______ goes into a chemical reaction
- 14. nucleic acid
- 17. released energy
- 20. reactants