Denitrifying bacteria require a carbon source. The dosage is the amount of chlorine used. An aerobic environment is one of the requirements for the denitrification.
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- 1. are organic proteins which can speed up the biochemical reaction that occurs mainly outside or on the microbial cell surface. 2. Clean surface waters are normally saturated with . , which can be removed rabidly in the aerobic oxidation. 3. . and .. are the most importance two measures in water quality required to stabilize the wastewater. 4. The . process are responsible to limits the polluting discharge effect and the recovery time in rivers.19. Does a compensatory pause always follow a PVC? Explain.53. Which one of the following bacteria group CANNOT survive in presence of oxygen? Group of answer choices obligate aerobes obligate fermenters facultative aerobes anaerobes microaerophiles aerotolerant 54. Identify the MISMATCH pair from the following, Group of answer choices E.coli :::: facultative aerobe group Bacteroides :::: obligate anaerobes none of the above is a mismatched pair Chlamydia sps :::: cell culture for cultivation Gardnerella sps :::: bacterial vaginosis Staphylococcus sps :::: can tolerate 20 % salt; cause pimples Rickettsias :::: obligate intracellular parasite
- 1. Define and differentiate the following terms: a. halophilic b. Capnophilic c. Microaerophilic42. WHAT DOES A MICROBIAL FUEL CELL CONSIST OF WHAT CAN BE FOUND IN THESE COMPONENTS?1. Describe the possible colour reactions one can observe with triple sugar iron (TSI) slant and the biochemistry it represents. 2. Briefly explain the term cardinal temperatures and apply it to the terms psychrotrophic and mesophilic microorganism.
- 1.What is the purpose of resazurin in thioglycollate medium? 2.Why does thioglycollate medium have only a small amount of agar in it? 3.How is a facultative anaerobe different from a facultative halophile? 4.Explain how a strict aerobe is different from a strict anaerobe. 5.What would happen to the bacteria if you accidentally closed all of the caps all the way? Would any of the cultures have grown? If so, explain which would grow and which wouldn’t.5 What are the cofactors are involved in redox reactions? selected all that apply: A) FAD B) CoA C)NAD+III. Microbes that can survive and thrive in extreme environments are known as extremophiles. In this context, what is the most accurate term that can be used to describe microbes that are used in vinegar (pH 2-3) production? A. B. C. D. Halophiles Acidophiles Thermophiles Psychrophiles
- 1. Why do we usually dilute cells before counting them in a hemocytometer?2. Describe how a biosafety cabinet provides protection for the product, environment, and yourself.3. Why are the cells grown in a CO2 incubator?1.Differentiate between a microaerophile and an aerotolerant organism. 2.Why is resazurin a useful media additive for the study of anaerobes? 3.Why is a GasPak anaerobic jar necessary for the culture of anaerobes on plates of Brewer's anaerobic agar but not in tubes of fluid thioglycollate medium (FTM)? 4.Where in the human body would you expect to find an obligate aerobe? Where would you expect to find an obligate anaerobe?37. You discover the following details about a newly isolated swamp microbe: the microbe can use inorganic H2S as an electron source, contains chlorophyll and carboxysomes. How can you categorize this microbe? A. Chemolithoautotroph D. Photoorganolithotroph C. Photolithoautotroph B. Chemoorganoheterotroph E. Chemolithoheterotroph 38. You discover the following details about a newly isolated soil microbe: undergoes nitrification and contains RUBSICO. How can you categorize this microbe? A. Chemolithoautotroph D. Photoorganolithotroph C. Photolithoautotroph B. Chemoorganoheterotroph E. Chemolithoheterotroph 39. Which of these partial proteins was most likely assembled by a thermophile? A. gly-gly-pro-arg-arg-cys-cys-gly B. cys-met-met-arg-asp-asp-asp-pro C. pro-pro-arg-his-pro-pro-pro-gly D. met-gly-cys-pro-arg-arg-pro-arg
