Exams and lectures - MCB 100; Fall 2005 Problem Set I...

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MCB 100; Fall 2005 Problem Set I Energetics and ATP 1. The structure of ATP explains why its hydrolysis has such a large negative free energy. 2. It has been argued that the use of ATP rather than Pi in the phosphorylation of glucose to G6P is required for the achievement of a negative G for the reaction that splits fructose bis phosphate. a. Why is a negative G for the reaction splitting Fru-1,6-P an issue? b. Is this argument valid? Explain. 3. Briefly describe the nature of the following term, indicating its biochemical significance with regard to topics discussed in class to date. -- standard free energy change vs free energy change 4. Reactions involving oxidation/reduction of metabolic intermediates share features with reactions involving phosphorylation / dephosphorylation of metabolic intermediates. a. Each such reaction usually involves a small molecule that serves as a “carrier” of one or a group of atoms. In each case, name the “carrier”, show its structure (use detailed structure of the part that is involved in the reaction, use names of groups to show the other components of the molecule), and draw the structure of the groups that are carried by the “carrier”.
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This note was uploaded on 01/12/2010 for the course MCB 100B taught by Professor Alper/calendar during the Fall '08 term at University of California, Berkeley.

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Exams and lectures - MCB 100; Fall 2005 Problem Set I...

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