Problem Set 5 Spring09 KEY

Problem Set 5 Spring09 KEY - Chapter 13, pg Page 1 of 3...

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Problem Set 7 1) Is the PFK reaction in muscle more or less exergonic than under standard conditions, given the following concentrations: 2) You make wine that is 10% w/v EtOH. What molar concentration of glucose (or equivalent) would be required for this to occur? MW of EtOH is about 46 g/mol, so: This is an unlikely concentration. However, there are other carbohydrate sources in barley including starches. 3) Which carbons of glucose, catabolized through glycolysis and the Krebs cycle, will be lost most rapidly as CO 2 ? The bond between carbons 3 and 4 of glucose is the one that is cleaved in the aldolase reaction. As a result, C3 becomes C1 of DHAP (the non-phosphorylated terminal carbon) and C4 becomes the aldehyde carbon of glyceraldehyde-3-phosphate. Triose phosphate isomerase converts the non-phosphorylated terminal carbon of DHAP (originally C3 of glucose) to the aldehyde carbon of another glyceraldehyde-3- phosphate. The aldehyde carbon of glyceraldehyde-3-phosphate eventually becomes the
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This note was uploaded on 11/03/2010 for the course CH 369K taught by Professor Techniquesofresearch during the Spring '08 term at University of Texas.

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Problem Set 5 Spring09 KEY - Chapter 13, pg Page 1 of 3...

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