BIO SCI 93 Lecture Notes - Lecture 15: Atp Synthase, Oxidative Phosphorylation, Pyruvic Acid
19 Aug 2016
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Clicker question: if an enzyme is added to a chemical reaction: Relocation of electrons from food to oxygen: released energy used to make atp. General redox rxn: oxidation: loss of electrons. Increase positive charge: reduction: gain of electrons. Organic compounds possess potential energy as a result of the arrangement of electrons in the bonds between their atoms. Overall goal of redox reactions in cellular respiration = controlled release of energy of synthesis of atp. Redox reaction relocates electrons closer to oxygen: therefore, releases energy which is coupled to generating atp. Transfer of electrons from fuel to transport chain is mediated by nadh. Nadh transfers electrons from food to the etc where the energy is harnessed to generate atp. Mediated by active transport: citric acid cycle, krebs cycle or tricarboxylic acid cycle, oxidative phosphorylation, nadh and fadh2 donate electrons, power proton pumps, generates high h+ concentration in intermembrane space, produces water. Clicker question: a drug that specifically inhibits atp synthase will:
