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key for 2009FinalA - The Final Exam Test A BIBC 102...

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The Final Exam Test A BIBC 102, Metabolic Biochemistry Wednesday, March 18, 2009 This exam has 20 pages (including this cover page); please check whether your exam is complete before you start to answer questions. The exam has 100 multiple-choice questions and each question is worth 1 point For all the questions, choose only one answer from the choices offered, and enter it onto the appropriate space of the scantron sheet. Use a number 2 pencil only You can keep the exam booklet after the exam You have 3 hours total to answer the questions. The questions are NOT arranged in the order of difficulty. The answer key will be posted on the course website tonight. Good luck! 1
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Questions 1 to 15 are related to the following five compounds (I to V) 1) How many NET NADH are (is) required when the compound I is used as the starting material to make a glucose molecule in animal cells? A) 0 B) 1 C) 2 D) 3 E) none of the above 2. How many NET GTP molecules are required when the compound I is used as a starting material to make a glucose molecule? 3. How many steps that use a phosphatase when the compound I is used as a starting material to make a glucose molecule 2 CH 3 -C O O - I II III IV V
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4. How many kinase(s) is (are) required when the compound III is used as a starting material to make a glucose molecule? 5. How many NET ATPs are needed to convert compound II to a glucose molecule? A) 0 B) 1 C) 2 D) 3 E) 4 6. How many enzymes are needed to convert compound I to compound III 7. How many enzymes are needed to convert compound V to compound III? 8. Which of the compound CANNOT be converted to glucose in animal cells? 9. Which of the compounds can be converted into amino acids in ONE step? A) I and II B) II and III C) I and III D) III and V E) V and II 3
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10. Which of the compounds are intermediates in TCA cycle 11). Which of the compounds can be converted to fatty acids? 12) How many NET NADH are produced when one molecule of compound II is completely oxidized to CO2. 13) Oxidation of 1 molecule NADH produces 2.5ATP and oxidation of 1 molecule of FADH2 produces 1.5 ATP. If the production of GTP counts as ATP, how many NET ATP molecules are produced when one molecule V is completely oxidized to CO2 and water? A) 13.5 B) 14.5 C) 15 D)15.5 E) 16
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