BIBC 102 - Name Student ID number The Second Midterm Exam...

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Name Student ID number The Second Midterm Exam BIBC 102, Metabolic Biochemistry Wednesday, February 20, 2009 a. This exam has 5 pages (including this cover page); please check whether your exam is complete before you start to answer questions. b. You should write your name in the space provided on each page. c. DO NOT DO “MEMORY DUMPING” . “Memory dumping” is to write all the things that may have something to do with the question. Follow the instructions carefully. For example, if you are asked to answer the question with fewer than 3 sentences, we will ONLY grade the first three sentences you write and ignore the rest of your writing. d. The exam has a total of 100 points. You have 50 minutes total to answer the questions. The exam ends at 9:50 am. Good Luck! 1
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1. Glycolysis regulation (23 points total) 1a Please draw a curve that shows PFK-1 activity (as Y-axis) against ATP concentration (as X-axis) in the absence of Fructose-2, 6-bisphosphate ( 2 points ). Draw another curve in the same plot that shows PFK-1 activity (as Y-axis) against ATP concentration in the presences of 20 μM Fructose-2, 6-bisphosphate ( 2 points ). 1b . In the following graph, PFK-1 activity (y-axis) is plotted against Fructose-6-phosphate concentrations (x- axis). The only difference between the two curves is ATP concentration. Which curve represents the reaction
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BIBC 102 - Name Student ID number The Second Midterm Exam...

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