3 2 organic compounds notes

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3 2 organic compounds notes

  1. 1. ORGANIC COMPOUNDS Biology Notes
  2. 2. I. What is an Organic Compound?1. Composed of 2 or more CARBON atoms2. Common elements that form organic molecules:Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen(N), Phosphorus (P), and Sulfur (S)
  3. 3. 3. May be HYDROPHOBIC (nonpolar)
  4. 4. Or HYDROPHILLIC (polar)
  5. 5. Or both
  6. 6. 4. May contain Functional Groups: reactive part of a molecule thatundergoes predictable reactions OH(Hydroxyl group,a type of alcohol)
  7. 7. 5. Ex. Macromolecules: antifreeze, acetone,diamonds
  8. 8. 6. Ex. Fossil fuels: coal, oil, natural gas Energy rich hydrocarbons that are primary source of energy on Earth
  9. 9. II. Organic MacromoleculesStructure of Macromolecules in Living Things1. Monomer Units: A molecule that is a single subunit or “building block” that will bond with other molecules to form larger structures.
  10. 10. 1. Monomer Units: A molecule that is a single subunit or “building block” that will bond with other molecules to form larger structures.Ex: = ring = simple structure sugar
  11. 11. 2. Polymers: Molecules built from 2 or more monomer units Can be formed by identical or similar monomer units
  12. 12. 3. MACROMOLECULES:Very large carbonstructures madeup of repeatingpolymers100’s of carbon moleculeslinked together. Ex: Carbs,Lipids, Proteins, NucleicAcids
  13. 13. III. The Building and Breaking Apart ofMacromolecules Organic macromolecules may differ, but they are ALL assembled and disassembled in the same way
  14. 14. 1. Dehydration reactions: LINKS monomer units TOGETHER to make larger molecules LOSS or PRODUCTION of a WATER molecule AS A RESULTDrawthis
  15. 15. Dehydration Reaction
  16. 16. 2. Hydrolysis Reaction: “to break” Reverse of dehydration ADDITION of WATER to break a larger molecule apart into smaller monomer unitsBig Polymer Small Monomers
  17. 17. Hydrolysis Reaction

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