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| Azospirillum |
| Cyanobacter |
| Nocardia |
| Nitrobacter |
| Rhizobium |
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- Which of the following is an organism involved in nitrification? Nitrosomonas Clostridium Azotobacter PseudomonasStaphylococcus aureus is non-motile, a facultative anaerobe, and a mesophile. At 37⁰C in abundant glucose, which incubation environment is more likely to produce the highest cell mass of S. aureus within two hours? Flask with aeration to add oxygen to the broth and shaking Flask left on the lab bench Flask grown in an anaerobic chamber that removes oxygen from the air around the flask Flask without aeration All will be equalWhich of the following is capable of oxidizing elemental sulfur to sulfates? Bacillus GSB and PSB Thiobacillus Rhodospirillum Desulfotomaculum Rhodomicrobium Azotobacter
- Bacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles Microaerophilic alkalophiles Psycrophilic neutraphiles Thermophilic acidophilesEnterobacteriaceae species might be differentiated (from one another) by all of the following except: o amino acid fermerntation o lactose fermentation O oxidase test o Eosin Methylene Blue agar o MacConkey agarVibrio cholerae can be cultured on Thiosulfate-Citrate-Bile salts-Sucrose agar (TCBS). Enterobacteriaceae and gram-positive bacteria are inhibited on this agar. cholerae produces large yellow colonies while other Vibrio species produce blue, green, or blue-green colonies. Discuss the purpose of each media listed. Based on this information alone, what term(s) would best describe this agar? Selective Enrichment (enriched) Differential Reducing Selective and enriched Selective and differential Selective, differential, and enriched
- A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. . Describe one possible problem that may occur if this organism grows in the presence of oxygenA chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. From where does this organism obtain its carbon?What is the oxygen requirement of this microbe? Thioglycollate Broth -Obligate aerobe=growth only occur at the top band of the broth -Facultative anaerobes= growth uniformly throughout the broth -Obligate anaerobes= growth only at the bottom of the tube -Aerotolerant= growth throughout the tube until just below the surface of the broth -Microaerophiles= growth in a heavy band just below the surface of the broth
- Clostridium tetani is a common soil bacterium and causes tetanus. Would you expect tetani to possess the enzyme catalase? Explain. Research on the growth requirements of this bacterium is required.Brocadia anammoxidans is required to rid of ammonia from sewer water in the treatment method, one of its main biotechnological uses. Hence, these are related to some denitrifying bacteria. What are other denitrifying bacteria that are related to this?Why mightproteorhodopsin make a bacterium such as Pelagibacter morecompetitive in its habitat?