Basic Bioenergetics

8/25/99


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NOTICE: This material is copyrighted and all right are reserved. (c) 1998, 1999 J. E. Wampler
Students may make a single copy for study purposes.

Table of Contents

{1} Basic Bioenergetics

{2} Energy can be neither created nor destroyed (1st Law of Thermodynamics)

{3} The first law is not much help...

{4} In class demo...

{5} Biochemistry is an uphill fight against chaos (2nd law of thermodynamics)

{6} Reactions in a calorimeter?...

{7} Converting heats of reaction...

{8} Without adiabatic wall...

{9} Key concept--

{10} Entropy...

{11} Entropy...

{12} The second law of thermodynamics and Entropy

{13} Summary relationships:

{14} One way this happens is the flow of energy from a Hot reservoir to a Cold one.

{15} Thermodynamics of different systems

{16} Reactions in a closed system...

{17} In the exothermic case diagrammed...

{18} Thermodynamics of different systems cont.

{19} Reactions occur spontaneously when the total entropy increases..

{20} Free energy

{21} Even with pH=7, the standard state is not a practical condition:

{22} This gives us two ways to look at whether a reaction will be spontaneous

{23} ?G tells us whether a reaction is spontaneous, not ?Go

{24} Measuring thermodynamic parameters

Author: John E. Wampler

Email: wampler@bmb.uga.edu

Home Page: http://bmbiris.bmb.uga.edu/8010

Other information:
Assignment is Chapter 3 of Garrett & Grisham, 2nd edition