An Enteropluri test (including VP), as used in Practical 4, gave the following results code: 7 2 3 O b. Lysine Oc. Lactose 5 2 This organism is capable of utilising which substrate to form a gas? This question is about interpretation of Enteropluri test data and not for identification (biocode may not exist). O a. Arabinose
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- How can this be explained in lamen terms the step by step results of enterobacter aerogenes? DISCUSS all the results. Discuss in a logical and step by step fashion how you concluded that you had a certain microorganism. You need to explain which observation(s) enabled you to identify your unknown microorganism (Enterobacter aerogenes). To convince your reader you need phrases like; This observation “suggested” that my organism is E. coli This observation “confirmed” that my organism is E. coliAlso phrases like; This observation “suggested” that my organism is NOT Enterobacter aerogenesHow can this be explained in lamen terms the step by step results of enterobacter aerogenes? DISCUSS all the results. Discuss in a logical and step by step fashion how you concluded that you had a certain microorganism.You need to explain which observation(s) enabled you to identify your unknown microorganism (Enterobacter aerogenes).To convince your reader you need phrases like; This observation “suggested” that my organism is Enterobacter aerogenes This observation “confirmed” that my organism is Enterobacter aerogenesNitrate reduction test can be used to differentiate between Pseudomonads and Enterobacteriaceae. You inoculated your Nitrate broth with your unknown; after incubation, you added 5 drops of reagent A and 5 drops of reagent B. You observe a red color within 2 minutes. Is this a + or a - reaction? Assuming you did not get a red color, you then added a pinch of Zinc and this time tou obtained a red color. What does this mean?
- If the inoculated lactose broth cube exhibits acid production but without gas formation, will you consider this as a negative or positive result? Explain Why is the MPN test qualitative rather than quantitative? Why is the MPN test qualitative rather than quantitative? Why is MPN test qualitative rather than quantitativeThe following results were obtained from a disk diffusion test for a strain of Escherichia coli. Chemotherapeutic Zone of inhibition (mm) A 7 B 10 C 18 D 3 Which drug above (A, B, C, or D) is most effective against this E. coli strain? ***Which drug above (A, B, C, or D) is most effective against Staphylococcus aureus? Explain your answer.Lysine decarboxylase media is yellow after incubating an organism in it at 37 degrees for 24 hours. Which of the following can be interpreted from this result? A. The organism did not grow so lysine decarboxylase activity could not be determined. B. The organism is negative for lysine decarboxylase. C. The media is too acidic to determine lysine decarboxylase activity. D. The organism is positive for lysine decarboxylase
- The Enterotube II System is a rapid multi-test method used to differentiate members of the family ___________ family, including Escherichia coli and Enterobacter aerogenes.Vibrio 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 enrichedWhat will happen to the color of the Coomassie reagent as more protein is added? Group of answer choices A) It will turn more Blue B) It will turn more Green C) It will turn more Red
- Hello, I want you pleaseeee to make a dichotomous key based on provided experiments to identify a an unknown bacterium mixture. It can be E. coli, B. Bulgaris, B subtilis, b aerogenes, m leuteus, s. Aureus, and s epidermisis. Make it based on these possible experiments: phenol red broth, mr/vp test, catalase test, oxidase test, nitrate reduction test, citrate utilization test, Malonate utilization test, decarboxylation test, starch hydrolysis test, dna hydrolysis test, lipid hydrolysis test, gelatin hydrolysis test, urea hydrolysis, SIM medium, triple sugar iron agar test, blood agar test. So far we have run a MAC agar and PEAA plate of the bacteriumEXPLAIN THE PURPOSE OF THE METHYL RED AND VOGES-PROSKAUER TESTS IN DETERMINING THE IDENTITY OF GRAM NEGATIVE ORGANISMS IN THE FAMILY ENTEROBACTERIACEAE. INCLUDE IN YOUR ANSWER WHY METHYL RED IS USED RATHER THAN PHENOL RED. WHAT ORGANISM IN THE FAMILY IS USED AS A CONTROL WHEN RUNNING THE METHYL TEST. IF THE METHYL RED TEST IS NEGATIVE, EXPLAIN WHY THE VOGES-PROSKAUER TEST IS RUN AND INCLUDE WHAT COLOR CHANGE INDICATES A POSITIVE TEST. ACCOUNT FOR THE COLOR DIFFERENCES IN THE NEGATIVE VOGES-PROSKAURER TESTS. WHAT REAGENTS (COMMON NAME) WERE USED IN THE VOGES -PROSKAUER TEST.Your nasal sample showed colonies with a clear halo around them on blood agar. What can you determine based on that observation? a. The organism is a mannitol fermenter b. The organism is able to utilize starch c. The organism is reducing the hemoglobin and damaging the erythrocytes d. The organism is beta-hemolytic e. The organism is unable to use red blood cells as a nutrient source