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BSCI 105 lecture 3

BSCI 105 lecture 3 - ,Polysaccharides,lipidsand...

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BSCI 105 - Macromolecules, Polysaccharides, lipids and  nucleic acids    Feb. 15, 2011 Test next Tuesday, quiz due this week(maybe) Structural Molecules: Diversity of life suggests diversity of struct. Molecules o Partially true Only four diff. types o Carbs. o Lipids o Nucleic acids o Proteins Macromolecules Polysaccharides proteins, and nucleic acids can form huge molecules  called Macromolecules (large molecule) Macromolecules are built from the  Polymers In any given polymer, the subunits are identical or very similar All polymers are built from fewer than 50 different monomers The KEY to structural diversity is the linear order of the monomers.
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Macromolecular Synthesis Polymer synthesis: dehydration synthesis (condensation reaction)  Polymer disassembly: Hydrolysis (splitting or breaking of covalent bond by  addition of water) Macromolecular diversity:  Variation in structure is limitless Key is not how many monomers but the arrangement of the monomers
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BSCI 105 lecture 3 - ,Polysaccharides,lipidsand...

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