Lecture_9legge - University of Houston BCHS 3304 General Biochemistry I Fall 2008 Section 12697 Tuesday/Thursday 11:30 AM 1:00 PM 102 SW Exam 1

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1 University of Houston BCHS 3304: General Biochemistry I - Fall 2008 Section 12697 Tuesday/Thursday 11:30 AM – 1:00 PM 102 SW Exam 1 Overview Condensation reactions •Chemical Evolution, simple molecules condense to form more complex forms (polymers) Reaction of a carboxylic acid with an amine Replication through complementarity • Specific pairing of functional groups gives rise to complementarity • More complex molecules increases chemical versatility • Complementarity makes it possible for macromolecules to replicate • Over time natural selection favored molecules that made accurate copies of themselves Gibb’s Free Energy • Is a state function (a property of a system that depends only on the current state of the system and not its history) • Gibb’s Free Energy is determined at constant T and P : G = H TS •T h e Gibbs free energy ( G ) of a system is defined by an enthalpy term ( H ) (change of the total energy with the system), and the entropy term ( S ) (change in the disorder) at temperature ( T ) G H - TS
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This note was uploaded on 02/22/2011 for the course BCHS 3304 taught by Professor Johnson during the Spring '08 term at University of Houston.

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Lecture_9legge - University of Houston BCHS 3304 General Biochemistry I Fall 2008 Section 12697 Tuesday/Thursday 11:30 AM 1:00 PM 102 SW Exam 1

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