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Bioenergetics in Living Cells: The Study of Energy Transductions

Explore the laws of thermodynamics on biological processes, structural and concentration differences between reactants and products, equilibrium dynamics, and the role of ATP, oxidation, and reduction in bioenergetics.

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Bioenergetics in Living Cells: The Study of Energy Transductions

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Presentation Transcript

  1. Biochemistry Lecture 2

  2. Bioenergetics • “The study of energy transductions in living cells” • Biological processes obey the laws of thermodynamics, i.e.: • Energy isn’t created or destroyed • Entropy of the system always increases Cell Products Reactants

  3. + 6 6 + 6 Thermodynamics

  4. Structural differences between products and reactants Concentration differences between products and reactants At equilibrium, ΔG = 0 and Q becomes Keq or Free Energy in Bioenergetics

  5. Organic Chemistry, revisited

  6. Nucleophilic Bond Formation

  7. Phosphate and ATP

  8. ATP Hydrolysis

  9. Oxidation and Reduction

  10. Electron Carriers

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