BIOL100B cellular respiration - Oxygen is important in...

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Oxygen is important in cellular respiration because without oxygen cellular respiration will not occur. Only the glycolysis will occur and no ATP will be made. ATP has high potential energy and is the major energy currency in cells. Without ATP, cell will not be able to do work and there will be no life. Reduction–oxidation reactions (Redox Reactions) are coupled chemical reactions in which one atom or molecule loses one or more electrons while another atom or molecule gains those electrons to produce ATP. LEO the lion goes GER ! LEO = L ost of E lectron is O xidation GER = G ain of E lectron is R eduction. When Redox reactions occur and hydrogen ions (H+) are transferred too. Oxidation: “removing hydrogen atoms” Reductions: “adding hydrogen atoms” *Oxidation reactions are always coupled with Reduction reactions. So in glucose oxidation, glucose is oxidized (loses electrons) and oxygen is reduced (gains electrons). Glucose (electron donor) is the reducing agent and oxygen (electron acceptor) is the oxidizing agent, and this transfer of electrons from organic molecule glucose to oxygen, releases energy that can be collected and used as ATP. The reason we breathe is because we want oxygen and oxygen is a great electron acceptor because it’s very electronegative. Difference between Substrate level phosphorylation and oxidative phosphorylation
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This note was uploaded on 03/06/2011 for the course BIOL 100B taught by Professor Nargesshassanzadeh-kiabi during the Winter '08 term at California State University Los Angeles .

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BIOL100B cellular respiration - Oxygen is important in...

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