1. Hydrogen Peroxide Water Catalase Enzyme Catalase Enzyme Oxygen Hydrogen Peroxide

2. When Bonds are made… • Energy is STORED when strong bonds are made. • Energy is RELEASED when weaker bonds are broken. **Be aware that this is a really simplified explanation that doesn’t do justice to the thermodynamics of chemical reactions.

3. Think about the possible meaning of following prefixes & suffixes with your table partner…(If you’re “all thought out” & have no idea, then go to your prefixes & suffixes sheet for help.)

4. Hydro-

5. Dehydrate-

6. -lysis

7. -tion

8. -synthesis

9. Hydro-water Dehydra-removing water -lysis-to break apart ‘slice’ -tion-process synthesis-putting together

10. Put the parts together. What does the word “Hydrolysis” mean?

11. Hydrolysis is… A chemical reaction in which a chemical compound is broken down with water.

12. Put the parts together. What does “Dehydration Synthesis” mean?

13. Dehydration Synthesis is… A chemical reaction in which 2 substances are joined and a water molecule is lost.

14. Demo #1:Hydrolysis or Dehydration Synthesis? OH OH OH OH Glucose Monomer (C6H12O6) Glucose Monomer(C6H12O6)

15. Demo #1: Hydrolysis or Dehydration Synthesis? An enzyme removes water. OH OH H O OH Glucose (C6H12O6) Glucose (C6H12O6) H2O

16. Demo #1: Hydrolysis or Dehydration Synthesis? OH O OH We now have a polymer also called a macromolecule.

17. Demo #2:Hydrolysis or Dehydration Synthesis? OH O OH Now, we start with a polymer…

18. Demo #2:Hydrolysis or Dehydration Synthesis? An enzyme adds water. OH O OH and add water to get …

19. Demo #1:Hydrolysis or Dehydration Synthesis? OH OH OH OH glucose monomers. (C6H12O6)