BIOL 1001Feb5

BIOL 1001Feb5 - BIOL 1001 Feb.5 Biological Molecules Why is...

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BIOL 1001 Feb.5 Biological Molecules Why is carbon so important in biological molecules? Has 4 electrons in outer shell Versatility: forms 4 covalent bonds Organic molecules = C + H, only made by living things Functional Groups: - Hydrogen: polar / non polar - Hydroxyl (OH): polar - Carboxyl(HCO 2 ): Acidic - Amino(NH 2 ): Basic - Phosph ate (PO 4 H 2 ) - Methyl (CH 3 ): Non polar How are organic molecules synthesized? Organic molecules show 2 similarities 1. Use same functional groups 2. Formed by the molecular approach - Stick subunits together like cars in train - Monom er- single unit; Dimer- double; polymer- m a ny Dehydration/ Hydrolysis Dehydration synthesis - HO-OH + HO-OH = HO-O-OH + H 2 O [lose water] Hydrolysis - H 2 O + HO – O – OH = HO – OH + HO – OH Example: How many molecules of H 2 O are created when a polymer 100 monomers ions is created? 99 Carbohydrates 1. Composition a. Carbon + water b. (CH 2 O) n 3. Function a. Energy b. Structural Monosaccharide – 1 sugar, immediate energy Disaccharide- 2 sugars, short term energy storage
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This note was uploaded on 09/19/2011 for the course BIOL 1001 taught by Professor Minor during the Spring '08 term at LSU.

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BIOL 1001Feb5 - BIOL 1001 Feb.5 Biological Molecules Why is...

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