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C485ExamIV - C485 Exam IV Fall `09 Name Legible please Do...

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C485 Exam IV Fall ‘09 Name___________________ Legible please! Do not use acronyms. Use structures whenever they are asked for, or appropriate. Your explanations should be brief . Overly lengthy answers with irrelevant or erroneous material will receive deductions. GOOD LUCK 1. (6 Pts) From the following compounds, identify the intermediates in the synthesis of cholesterol and list them in their proper sequence (use the letters please). a) geranyl pyrophosphate; b) squalene; c) isopentenyl pyrophosphate; d) mevalonate; e) cholyl CoA; f) farnesyl pyrophosphate; g) lanosterol 2. (6pts) Which of the following reactions are significant sources of glycerol 3-phosphate that is used in lipid synthesis? Circle your choice(s). a) reduction of dihydroxyacetone phosphate b) oxidation of glyceraldehyde 3-phosphate c) phosphorylation of glycerol d) dephosphorylation of 1,3-bisphosphoglycerate e) reductive phosphorylation of pyruvate 3. (12 pts) Starting with phosphatidic acid and ethanolamine, outline (show the intermediates) in the following conversion sequence:
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