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MCB_BMB_DIS07_problems_fri

MCB_BMB_DIS07_problems_fri - MCB 102 Spring 2009...

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MCB 102 Spring 2009 March 06, 2009 Discussion #7 Jia Xing, Spring 2009 Contact Information TA : Jia Xing Section 104 : Fri, 9-10, 24 Wheeler Email : [email protected] Office Hours : Monday, 4-5, 315 Gilman Unit 2 Schedule Section #/Exam Date Lectures Covered Section 7 Fri, Mar 6 2, 3 Section 8 Fri, Mar 13, Quiz 3 4, 5, 6, 7 Section 9 Fri, Mar 20 8, 9, 10 Section 10 Fri, April 3, Quiz 4 11, 12 Review Session Sat, April 4 13, 14 Midterm 2 Thursday, April 7, 6:30-8:30 PM Discussion Overview Topic Problems 1. Glycolysis, Glyconeogenesis, Pentose Pathway 1, 2, 3, 4 Problems 1. (Study Guide 14.10) Suppose you discovered a mutant yeast whose glycolytic pathway was shorter because of the presence of a new enzyme catalyzing the reaction Glyceraldehyde 3-phosphate + H 2 + NAD + 3-phosphoglycerate + NADH + H + Would shortening the glycolytic pathway in this way benefit the cell? Explain. 2. (Study Guide 14.25) The consumption of alcohol (ethanol), especially after periods of strenuous activity or after not eating for several hours, results in a deficiency of glucose in the blood, a condition known as hypoglycemia. The first step in the metabolism of ethanol by the
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