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Biochem415 Exam2 Key - Biochemistry 415/515 2008 Name...

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Biochemistry 415/515 2008 Name ________________________ October 28, 2008 uniqname________________________ Biochemistry 415/515 Exam 2 of 4 100 points total Instructions: 1. Please put your name on each page of the exam, your uniqname on the first page and fill out the scantron sheet with your student ID number and name. 2. Read through the exam first. Answer the immediately obvious questions when you can. Put a question mark by the ones you’re not sure about. You may take up to 2 hours to complete the exam. 3. Note that we will be answering questions of clarification only. In fairness to the other students we will not be able to answer any questions involving content. 4. Make sure that you have answered all of your questions on the scantron sheet, including the true/false (True=A, False=B). Please turn in both your scantron sheets and your question sheets when you are done. Good luck! Section A. Multiple choice (33-2 points per question). Choose the single most appropriate answer. 1. Gluconeogenesis: a. Is the synthesis of glucose from noncarbohydrate precursors b. Maintains blood glucose levels during times of fasting and starvation c. Is simply glycolysis in reverse d. A and B e. A, B and C 2. The primary raw materials for gluconeogenesis are: 3. Identify the gluconeogenic steps that bypass irreversible steps of glycolysis: Midterm Examination #2 Page 1
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Biochemistry 415/515 2008 Name ________________________ October 28, 2008 uniqname________________________ 4. Pyruvate carboxylase: a. Catalyzes a key regulatory step in glycolysis b. catalyzes the carboxylation of pyruvate to form oxaloacetate c. is activated by acetyl CoA d. B and C e. A, B and C 5. Which of the following enzymes utilize biotin as a cofactor: 6. Gluconeogenesis and glycolysis are reciprocally regulated. Which of the following favor/promote gluconeogenesis? a. ATP b. citrate c. fructose 2, 6 bisphosphate d. A and B e. A, B and C 7. The Cori cycle:
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