Exam3_2010_V1 - NAME AuburnUSERID EXAM3 Version1...

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1 NAME:____________________________________ Auburn USER ID:_______________________ BIOL3200 General Microbiology EXAM 3 Version 1 I encourage you to mark the correct answer on this sheet in case of problems with your Scantron. THIS EXAM PAPER MUST BE TURNED IT AT THE CONCLUSION OF TODAY’S EXAM. In all cases only one answer will be correct. If in doubt choose the answer you feel is most correct!! 1. Natural transformation can be achieved when certain cells are in late log and early stationary phase. At this stage these cells are called a) Capable b) Competent c) Responsive d) Growth 2. DNA replication in prokaryotes is normally a) Coupled b) Bi‐directional c) Error prone d) A and B 3. RNA polymerase is required for a) Transcription b) Translation c) Replication d) Repression 4. The fermentation product acetion is used for differentiating organisms. This test is called a) Fermenters differentiation test (FDT) b) Barritt’s test c) Morrow test d) Voges‐Proskauer test 5 . Mistakes in transcription have long lasting affects on the total population a) True b) False
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2 6. ATP produced during glycolysis is a result of a) Oxidative phosphorylation b) Substrate‐level phosphorylation c) Inorganic Pi addition by hydrolysis d) Both A and B 7. This organism is different to the wild‐type because it has a single base pair change in the ubr1 gene. This is a description of the organism’s _______________. a) Phenotype b) Genotype c) gene output d) gene involved in ultra‐fresh breath 8. An organism is switched from a media containing low salt to a media containing very high salt. This change in osmotic pressure is an environmental stress that could lead to a) Increased replication b) Changes in transcription c) No changes in mRNA but selective changes in translation d) Phosphorylated ribosome 9. Which of these features are important for DNA replication of a chromosome a) Origin of transfer, Origin of replication b) Origin of replication, Okazaki Fragments c) F+ markers, Origin of replication d) Okazaki fragments, Origin of Transfer 10. ________________ is a metabolite and _______________ is the enzyme that makes it? a) Fumerate, Fumerate hydratase b) Fructose 1,6 bisphosphate aldolase, Succinate c) Fumerate hydratase, Malate d) Malate, Fumerate hydratase 11. A Streptococcus mutans that no longer causes tooth decay because it is unable to grow in the human mouth is isolated it is called S. mutans UFBS (ultra‐fresh breath strain). This is a description of the organisms _______________. a) Phenotype b) Genotype c) Serotype d) Genotype and Phenotype
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3 The following drawings are metabolic schemes for two prokaryotic organisms growing in complex, rich media.
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Exam3_2010_V1 - NAME AuburnUSERID EXAM3 Version1...

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