1. Hydrogen Peroxide Catalase Enzyme Oxygen Water Catalase Enzyme

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. OH Glucose Monomer (C 6 H 12 O 6 ) OH Glucose Monomer (C 6 H 12 O 6 ) Demo #1: Hydrolysis or Dehydration Synthesis?

15. OH Glucose (C 6 H 12 O 6 ) H OOH Glucose (C 6 H 12 O 6 ) Demo #1: Hydrolysis or Dehydration Synthesis? An enzyme removes water. H2OH2O

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

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

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

19. OH glucose monomers. (C 6 H 12 O 6 ) OH Demo #1: Hydrolysis or Dehydration Synthesis?

20. CASE # 1

21. CASE STUDY # 1 Lactose—type of sugar (C 12 H 22 O 11) Breakdown of this type of sugar requires an enzyme called Lactase We have to break it down so our cells can use the sugar The chemical reaction is as follows… C 12 H 22 O 11 + H 2 O  C 6 H 12 O 6 + C 6 H 12 O 6 An anonymous individual cannot seem to digest milk (lactose)… this person would be called “________ _________” What do you think this person might be lacking? Is the normal breakdown of lactose by lactase and example of hydrolysis or dehydration synthesis? What makes you say that?

22. CASE # 2

23. CASE STUDY # 1 Sucrose—a type of sugar Sucrose is the ‘white’ sugar that we use… Many forms of sugar are liquid… table sugar is a solid The chemical reaction is as follows… C 6 H 12 O 6 + C 6 H 12 O 6  C 12 H 22 O 11 + H 2 O Is the formation of sucrose by combining 2 C 6 H 12 O 6 molecules and removing a water molecule an example of hydrolysis or dehydration synthesis? What makes you say that?