BIO 103 Lecture Notes - Lecture 10: Oxidative Phosphorylation, Citric Acid Cycle, Electron Transport Chain

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13 Oct 2018
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The molecule or atom that loses the electron is oxidized. The molecule which gains the electron is reduced. The molecule that is be oxidized loses electrons to the one being reduced, so is called a reducing agent. Likewise, oxidizing agents are those that accept the electron from the molecule being oxidized. Controlling the drop allows you to harness the energy released! Oxidation of glucose by o2 into co2 and water: C6h12o6 + 6o2 ------ 6co2 + 6h2o g=-686 kcal/mol. By catabolizing (releasing energy by breaking down large organic molecules into smaller ones) glucose in steps, more energy can be harnessed to make atp. Aero(cid:271)i(cid:272) respiration"s three steps: glycolysis, p(cid:455)ruvate o(cid:454)idation and (cid:272)itri(cid:272) a(cid:272)id (cid:894)kre(cid:271)"s(cid:895) (cid:272)(cid:455)(cid:272)le, oxidative phosphorylation (electron transport chain) Strips two h from organic molecules (2 electrons and 2 protons) Nadh oxidizes (releases h+ plus 2 e-) in electron transport chain to convert back to nad+

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