1. ORGANIC COMPOUNDS KEY CONCEPT Carbon-based molecules are the foundation of life.

2. Organic Compounds  Compounds made by cells and containing carbon  Carbon atoms have unique bonding properties.  A carbon atom has 4 electrons in its outside shell  Does it make covalent or ionic bonds? covalent

3. Organic Compounds  Carbon-based molecules have three general types of structures. – straight chain – branched chain – ring

4. Macromolecules Triglyceride  Large molecules  Examples: Proteins, Carbohydrates, Lipids, Nucleic Acids

5. How do you make a macromolecule?  Need small building blocks  These are called Monomers  Link monomers together you get  Polymers Greek Poly (many) Meros (parts)

6. Lipids  Mini lab “Lipids on the Loose”  Safety  Lab groups

7. Lab Groups 1. Leah & Max 2. Jorge & Mark 3. Kaitlyn & Laila 4. Stephen & Harun 5. Brian & Joshua 6. Brayan & Ridwan 7. Jason & Bean 8. Ava & Jodie 9. Emily & Amanda & Deondre 10. Malani & Rosiland 11. Grace & Abyan 12. Victoria & Lexie 13. Tayler & Malorie

8. Fats  Lipids are mostly carbon and hydrogen  They store energy  Triglyceride (fat in the blood) most common monomer of lipids  Monomers –  Glycerol  Fatty acids

9. Saturated Fats  Saturated fats have the maximum number of hydrogen  Are solid at room temperature  Most animal fat

10. Read those labels!!! Diets rich in saturated fats may contribute to cardiovascular disease Called atherosclerosis Lipid deposits called plaques build up in blood vessels

11. Unsaturated Fats https://www.youtube.com/watch?v=QhUrc4BnPgg https://www.youtube.com/watch?v=QhUrc4BnPgg  Unsaturated fats contain double bonds  Liquid at room temperature  Most vegetable fats

12. Other forms of lipids  Phospholipids  Major component of cell membranes  Contain phosphorus & fatty acids  Waxes  Fatty acids and alcohol  Natural coating for fruits  lipstick  Steroids  Lipids bent to form rings  Found in animal cell membranes  Starting material to make male and female sex hormones

13. Functions of Lipids They are a great source of STORED ENERGY so we have it in the future. They INSULATE the body to maintain normal body temperature and they CUSHION the internal organs for protection. They produce hormones for the body called STEROIDS They waterproof surfaces of animals, plants, and fruits- these are waxes! THINK: Waterproof, insulate, steroids, energy, cushion… “WISE C”

14. -Proteins! -Minilab: Wear closed toe shoes! -Give me three important things we learned today New discovery! Bio in the news: Homo naledi - https://www.youtube.com/watch?v=oxgnlSbYLSc https://www.youtube.com/watch?v=oxgnlSbYLSc Tomorrow: