Problem Set 3 ANSWER KEY 2010

Problem Set 3 ANSWER KEY 2010 - Problem Set 3 Chapters 9-10...

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Problem Set 3 BILD1 / Winter 2010 Chapters 9-10 Traver 1 Respiration 1) Write out the overall reaction of glucose breakdown. Denote which molecules are oxidized and which are reduced. Include Energy on one side of the equation. 2) Write out the reaction for the burning of methane. Also note which molecules are oxidized and which are reduced. Explain how a redox reaction can happen without the complete transfer of electrons from reactants to products. Redox reactions can occur from the relative degree of electron sharing between reactant and product covalent bonds. In this example, C partially loses e- to more electronegative O molecules when CH 4 reacts to form CO 2 . This is sufficient to release E as e- move from a state of higher to lower E. 3) Starting with pyruvate, follow one turn through the citric acid cycle. What is the maximum number of ATP molecules that can made via substrate-level phosphorylation? From oxidative phosphorylation? One molecule of pyruvate will produce 1 molecule of ATP by substrate-level phosphorylation in one round of the citric acid cycle. Via oxidative phosphorylation, 14 ATP molecules will be produced per molecule of pyruvate. 1 NADH is made via conversion of pyruvate to acetyl CoA; 3 NADH and 1 FADH 2 are produced in one turn of the citric acid cycle. This results in a total of 4 NADH and 1 FADH 2 molecules. In the electron transport chain, each NADH produces 3 ATP, each FADH 2 produces 2 ATP. Net result = 14 ATP molecules per pyruvate. 4)
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This note was uploaded on 03/31/2010 for the course BIOLOGY BILD 1 taught by Professor Traver during the Winter '10 term at UCSD.

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Problem Set 3 ANSWER KEY 2010 - Problem Set 3 Chapters 9-10...

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