Enterobacteriaceae species might be differentiated (from one another) by all of the following except: o amino acid fermentation o lactose fermentation O oxidase test o Eosin Methylene Blue agar o MacConkey agar
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- Which of the following is an organism involved in nitrification? Nitrosomonas Clostridium Azotobacter PseudomonasWhich of the following is capable of oxidizing elemental sulfur to sulfates? Bacillus GSB and PSB Thiobacillus Rhodospirillum Desulfotomaculum Rhodomicrobium Azotobacter"Which of the characteristics identified using SIM media, which would be most useful in differentiating E. coli and Enterobacter?" lactose fermentation hemolysis motility hydrogen sulphide formation indole formation
- on the thioglycolate tube where would you expect to see growth of facultative anaerobesSulfur Indole Motility (SIM) Medium H2S produced, color and +/-: ______________________________ Indole present/Tryptophan hydrolysis, color and +/-: ___________________________ Motile or non-motile: _____________________________Match the microorganisms in column A with their corresponding product in column B, then match your answer in column B to column C. A B C 1. B. subtilis A. Lactic acid I. Primary metabolite 2. Xanthomonas B. Erythromycin II. Secondary metabolite 3. C. glutamicon C. Rifamycin III. Tertiary metabolite 4. Bifidobacteria D. Glutamic acid IV. Quaternary metabolite 5. A. oryzae E. Acetic acid 6. E. coli F. Gentamicin 7. Ascomycetes G. Citrate 8. Brewer’s yeast H. Amylase 9. S. orientalis I. Polymysin 10. P. furiosus J. Vitamin C 11. S. erythraea K. Taq polymerase 12. Aspergillus L. Penicilin 13. M. purpurea M. Cellulase 14. S. mediterranei N. Vancomycin 15. Acetobacter O. Vitamin B P.…
- Which of the following is not a characteristic of the Enterobacteriaceae? Group of answer choices Gram-positive rods Gram-negative rods Oxidase negative Catalase positive Produce acid from glucose None of the enteric bacteria are human pathogens. Group of answer choices True False Media that inhibit the growth of some organisms while encouraging others' growth are referred to as _______ media. Group of answer choices selective differential complex defined Media that contain indicators to expose differences between organisms are referred to as ______ media. Group of answer choices selective differential complex defined Which of the following is TRUE of EMB agar? Choose ALL that apply. Group of answer choices It contains lactose It is selective for Gram-positive microorganisms. It can differentiate between lactose fermenters from nonfermenters. It inhibits the growth of Gram-negative bacteria. It contains mannitol…Why it is important to stop Tempeh fermentation prior the sporulation of molds?EXPLAIN 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.
- Which lactose (+), Gram negative, short rod forms a pink to brick red colony on MacConkey's agar and a metallic green sheen on Levine's EMB agar? Group of answer choices Serrate marcescens E. coli Proteus vulgaris Salmonella enteriditis Enterobacter aerogenesComplete the table below regarding different types of fermentation. Microbe Type of fermentation it carries out Products generated through fermentation Saccharomyces cerevisiae Escherichia coli Enterobacter aerogenes Lactobacillus acidophilusCertain endospore-forming bacteria are a particular concern of the canned food industry. Name one of these bacteria and explain why it is of such concern.