Lecture_24-Biological_Redox_Reactions

Lecture_24-Biological_Redox_Reactions - Oxidation/reduction...

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BIOLOGICAL REDOX REACTIONS Oxidation/reduction reactions are those that involve the movement of ___ betweens atoms or molecules. A. protons B. neutrons C. electrons D. quarks True or False: An oxidation reaction can occur without a simultaneous reduction reaction if the conditions are just right A. True B. False In redox reactions, the species that receives the electrons in the transfer is the ___ agent. A. oxidizing B. reducing
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conjugate redox pair conjugate redox pair Redox Rxns: Review A ox n + + B red A red + B ox n + A ox n + + ne A red B red B ox n + + ne ± Redox rxns may be written as half-reactions True or False: Reduction potential is a term that describes the tendency of a species to become reduced. A. True B. False In redox reactions, the species that receives the electrons in the transfer has ____ reduction potential compared to the other species. A. a greater B. a lesser C. the same True or False: Transfer of electrons cannot occur between two species that have the same sign in their reduction potential values. A. True B. False
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Some Standard Reduction Potential Values the more positive the E’° value, the stronger the afFnity for electrons the more likely it is to be reduced a stronger oxidizing agent A ox n + + B red A red + B ox n + Δ G = Δ G ' ° + RT ln A red [ ] B ox n + [ ] A ox n + [ ] B red [ ] Δ G ' ° = n ℑΔ
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Lecture_24-Biological_Redox_Reactions - Oxidation/reduction...

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