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Unformatted text preview: 1 CarbonThe Backbone of Biological Molecules cells 7095% water , the rest carbon-based compounds Carbon forms large , complex , and diverse molecules C proteins, DNA, carbohydrates, fats Carbon atoms can form diverse molecules by bonding to four other atoms Carbon forms covalent bonds with many atoms This tetravalence makes large, complex molecules possible Shapes of simple organic molecules: carbon can combine with itself Molecular Formula Structural Formula Ball-and-Stick Model Space-Filling Model Methane Ethane Ethene (ethylene) Carbon combines with H, O, N Hydrogen (valence = 1) Oxygen (valence = 2) Nitrogen (valence = 3) Carbon (valence = 4) The role of Carbon in organic molecular diversity Molecular diversity arises from Carbon skeleton variation Benzene Variation in Carbon Skeletons Length Ethane Propane Butane 2-methylpropane (commonly called isobutane) Branching Double bonds Rings 1-Butene 2-Butene Cyclohexane Benzene 2 Hydrocarbons Hydrocarbons...
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This note was uploaded on 09/29/2011 for the course BIO 121 taught by Professor Pazymino during the Fall '08 term at UMass Dartmouth.
- Fall '08