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Bio Lecture 4 - Ends in –ate o Amino group-NH2 Organic...

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Bio Lecture 4 (9/12/11) Geometric Isomers o Have the same covalent bond arrangement but differ in special arrangement Enantiomers o Mirror images of each other o Same chemical properties, different biological properties Significance of Isomers o Biomolcules have to fit together Interactions between organic compounds occur via attached functional groups Functional Groups* o Hydroxyl group (-OH) Electronegativity 0 improves solubility Alcohols Names typically end in –ol o Carbonyl group (C=O) Carbon and oxygen have double bond Aldelhyde= carbonyl group o Carboxyl group (-COOH) Called carboxylic acids C atom double bonded w/ oxygen and bonded to hydroxyl group
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Unformatted text preview: Ends in –ate o Amino group (-NH2) Organic compound w/ amino groups called amines Amines= acts as a base • EX) ammonia o Sulfhydryl group (-SH) Sulfur atom bonded to a hydrogen atom and to the backbone Organic molecules w/ sulfhydroxyl groups are thiols o Phosphate group (-OPO3^2-) Phosphorus bound to four oxygen atoms Connects to the carbon backbone via one of its oxygen atoms Soluble in water Play role in regulation (phosphorylate) o Methyl group Hydrophobic Not very reactive Methylation can affect function; used to regulate processes...
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