Wed. January 24

Wed. January 24 - Storage Starch (plants) Glycogen...

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Biological Molecules Large molecules constructed from smaller molecules. Polymers constructed from monomers. Mono = single Poly = many Biological Molecules except for water, all are built on carbon skeleton. Water Carbohydrates Lipids Proteins Nucleic Acids Functional Groups Hydroxyl-Alcohols Carbonyl-Aldehydes (terminal carbon) and keytones Carboxyl-Acid group Amino-Amines Sulfhydryl-Thiols Phosphate-Organic Phosphates ( Figure 4.5) Synthesis of Polymers Condensation (dehydration) synthesis Breakdown of Polymer Hydrolysis
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Breaking the covalent bond of the polymer by the addition of a water molecule. Why make large biological molecules from simple monomers? Flexible system Fewer enzymes to make biological molecules than if “starting from scratch.” Carbohydrates General formula (CH 2 O) n 2 Major roles Metabolic fuel Glucose Sucrose
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Unformatted text preview: Storage Starch (plants) Glycogen (animals) Carbohydrates structural roles Cellulose (plants) Chitin (animals) Lipids Water-insoluble organic biomolecules made up of non-polar groups. Structural components of cell membrane. Storage and transport forms of fuel. Protective surface coating (like plant leaves) Cell component in cell recognition. Hormone First exam Febuary 8, 2007 Fat Types Saturated (Saturated with H, no double bonds between adjacent carbons) Unsaturated (Double bonds, lower melting point) Melting Points Differ Saturated fats are solids at higher temperatures than unsaturated fats. Acyl chains of unsaturated fats are kinky and therefore require a lower temperature to become a solid. Polymers Triglycerides Phospholipds...
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This note was uploaded on 04/07/2008 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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Wed. January 24 - Storage Starch (plants) Glycogen...

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