1. Organic Macromolecules

2. Organic Contains carbon and hydrogen atoms together Example: –CH 4 :methane –CO 2 :carbon dioxide –C 6 H 12 O 6 : sugar –H 2 O:water

3. Macromolecules Four important macromolecules that we will study: 1)Carbohydrates 2)Lipids 3)Proteins 4)Nucleic acids

4. Macromolecules Polymer: large unit made up of smaller subunits Monomer: subunits Monomers are linked together to form polymers Linkage occurs by dehydration synthesis OR condensation reactions.

5. Dehydration Synthesis / Condensation

6. Dehydration Synthesis Joining two monomers by the removal of a water molecule ANABOLIC monomer + monomer  polymer + water X – OH + HO – X  X -O- X + H 2 O

7. Example 1

8. Example 2

9. Hydrolysis Opposite of a condensation reaction Uses a water molecule to break apart monomers CATABOLIC polymer + water  monomer + monomer X -O- X + H 2 O  X – OH + HO – X