1. Biology Today is Wednesday Sept 2, 2015 Drill: Compare and contrast simple and complex carbs. Outcome: Illustrate the structure of a lipid and explain how the body uses lipids

2. Compare and contrast simple and complex carbs.

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: 4. Nucleic Acids: genetic information long term energy storage

5. Lipids One of the four organic molecules (or macromolecules) Function is to supply our body with long term energy Lipids are NOT used until Carbohydrates run out Make up 10% of our daily dietary needs Oils/Fats/Waxes

6. Lipids One of the four organic molecules (or macromolecules) Function as a important component of cell membranes Phospholipid bilayer -Part of the cell membrane -Can contain protein channels (allowing things to pass through) -The tails are hydrophobic (water fearing) -The heads are hydrophilic (water loving)

7. Lipids One of the four organic molecules (or macromolecules) Function as a carrier for Vitamins VitaminsFunction in our body AEye Sight CWound Healing DBone Strength KBlood Clotting

8. Lipids Building Blocks The building block (monomer) is 3 fatty acids and a glycerol. Also known as a triglyceride. There are two triglycerides: Saturated: Solid at room temperature. Example: Animal Fats Unsaturated: Liquid at room temperature. Example: Oils

9. Finding the Lipids Lab You will be looking at the amount of grease that comes off of the following four foods: Lutz Potato Chips, Cool Ranch Doritos, Cheetos Crunchy, and Ritz Crackers. Let’s look at the lab before we begin!

10. Exit Ticket Explain how your body uses lipids.