1. Biology Today is Friday Sept 4, 2015 Drill: What foods do you eat that contain lipids? Outcome: Compare the structure and function of all 4 macromolecules.

2. What foods do you eat that contain lipids?

3. REMEMBER!!!! Organic Molecules = Macromolecules Organic= Also Hydrogen, Oxygen, and Nitrogen Monomers: Polymers: Smallest unit (puzzle pieces ) Many monomers put together (the completed puzzle) made of carbon

4. Organic Molecules = Macromolecules 1. Carbohydrates: main source of energy 2. Protein: build and repair body tissue (muscles) 3. Lipids: Long term energy storage. 4. Nucleic Acids: genetic information

5. Protein Function One of the four organic molecules (or macromolecules) Function is to control the rate of chemical reactions and regulate cell processes Example: Enzymes Lactase helps break down lactose (the sugar found in milk) Function is to transport substances in and out of cells. Examples: Proteins channels

6. Proteins Structure Contains Carbon, Hydrogen, Oxygen, and Nitrogen Amino acid and carboxyl groups do not change “R” group changes

7. Protein Building Blocks The building block (monomer) is amino acids There are 20 different types of amino acids Change based on the “R” Group

8. Nucleic Acid Function One of the four organic molecules (or macromolecules) Function is to carrier genetic information Example: DNA Function is to create (synthesize) proteins Example: RNA

9. Nucleic Acids Structure

10. Review You will be completing a organizer to study for your quiz You must be able to: Name each macromolecule and their monomer (building block) Explain the function Explain the structure

11. Exit Ticket A scientist removed the cell membranes from bacteria cells in a culture. She analyzed the cell membranes for specific molecules. Which of these was probably the most common type of molecule present in the bacteria cell membranes? A.lipid B.amino acid C.nucleic acid D.carbohydrate