Oct18 - Biology 1020 Lecture 15 Oxidative phosphorylation...

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Unformatted text preview: Biology 1020 Lecture 15 Oxidative phosphorylation Electrons from NADH passed among proteins of the ETC with the help of Coenzyme Q and ________(iron atom) to O 2 ETC generates no ATP directly cytochromes Electron transport chain Intermembrane space Intermembrane________ Mitochondrial______ space matrix *will be tested on this folded increases surface area NADH + FADH2 --> NAD + FADH+ oxidized protons and electrons released through complexes H+ move from mito. matrix to the intermembrane space electrons passed down to oxygen oxygen is getting reduced to water NADH + H + NAD + + 2e- + 2H + ____________ Electron transport chain: oxidation of NADH Travel down the ETC To_________ Pumped into _____________ ___________ oxidation oxygen intermembrane space H + then moves back across the membrane, passing through channels in______________ Chemiosmosis: use of a H + gradient to drive work [high] [low] ATP synthase Chemiosmosis H + gradient across a membrane high ____________ Movement of protons back into matrix coupled to ATP synthesis by ATP synthase potential energy (high free energy) Chemiosmosis H + gradient a ______________- capacity to do work proton-motive force (proton moving force) Chemiosmosis _____+ chemiosmosis = oxidative phosphorylation ETC ETC- Chemiosmosis Summary _____ (glycolysis & TCA) and______ (TCA) transfer electrons to ETC ETC complexes located on the mitochondrial inner membrane series of redox reactions NADH FADH(2) ETC-Chemiosmosis Summary ____pumped into intermembrane space Electrons delivered to ____ Proton motive force (intermembrane mitochondrial matrix) drives ATP synthesis H+ (protons) O(2) ETC Summary Used by ETC Produced by ETC ( + chemiosmosis) NADH FADH(2) NAD+ FAD+ H+ ADP P(I) ATP H+ O(2) H(2)O ATP synthesis by cellular respiration...
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Oct18 - Biology 1020 Lecture 15 Oxidative phosphorylation...

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