Biochemistry Lecture 2. Bioenergetics “The study of energy transductions in living cells” Biological processes obey the laws of thermodynamics, i.e.:

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Presentation transcript:

Biochemistry Lecture 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 Reactants Products

Thermodynamics

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

Organic Chemistry, revisited

Nucleophilic Bond Formation

Phosphate and ATP

ATP Hydrolysis

Oxidation and Reduction

Electron Carriers