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Exam 22: Nucleotide Metabolism

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Exam 1: The Scope of Biochemistry16 Questionsadd course
Exam 2: The Matrix of Life: Weak Interactions in an Aqueous Environment24 Questionsadd course
Exam 3: The Energetics of Life24 Questionsadd course
Exam 4: Nucleic Acids27 Questionsadd course
Exam 5: Introduction to Proteins: the Primary Level of Protein Structure24 Questionsadd course
Exam 6: The Three-Dimensional Structure of Proteins23 Questionsadd course
Exam 7: Protein Function and Evolution26 Questionsadd course
Exam 8: Contractile Proteins and Molecular Motors18 Questionsadd course
Exam 9: Carbohydrates: Sugars,saccharides,glycans27 Questionsadd course
Exam 10: Lipids,membranes and Cellular Transport24 Questionsadd course
Exam 11: Enzymes: Biological Catalysts23 Questionsadd course
Exam 12: Chemical Logic of Metabolism24 Questionsadd course
Exam 13: Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway40 Questionsadd course
Exam 14: Citric Acid Cycle and Glyoxylate Cycle24 Questionsadd course
Exam 15: Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism24 Questionsadd course
Exam 16: Photosynthesis25 Questionsadd course
Exam 17: Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins25 Questionsadd course
Exam 18: Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates21 Questionsadd course
Exam 19: Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids24 Questionsadd course
Exam 20: Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover24 Questionsadd course
Exam 21: Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters24 Questionsadd course
Exam 22: Nucleotide Metabolism24 Questionsadd course
Exam 23: Mechanisms of Signal Transduction23 Questionsadd course
Exam 24: Genes,genomes and Chromosomes24 Questionsadd course
Exam 25: Dna Replication24 Questionsadd course
Exam 26: Dna Restructuring: Repair,recombination,rearrangement,amplification24 Questionsadd course
Exam 27: Information Readout: Transcription and Post-Transcriptional Processing24 Questionsadd course
Exam 28: Information Decoding: Translation and Post-Translational Protein Processing27 Questionsadd course
Exam 29: Regulation of Gene Expression24 Questionsadd course
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Show the reaction of allopurinol with xanthine dehydrogenase and explain how this molecule functions as an inhibitor of the enzyme. Show the reaction of allopurinol with xanthine dehydrogenase and explain how this molecule functions as an inhibitor of the enzyme.

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Question 21

The ten enzyme activities that convert PRPP to inosinic acid are part of a multienzyme complex known as the _________.

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Question 22

During the conversion of IMP to GMP and AMP,__________ serves as the nitrogen source for GMP,while _________ serves as the nitrogen source for AMP.

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Question 23

Given the structure of GMP,indicate the source for all carbons and nitrogens in the guanine base. Given the structure of GMP,indicate the source for all carbons and nitrogens in the guanine base.

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