Organism list 1. Alcaligenes faecalis 2. Bacillus cereus 3. Bacillus polymyxa 4. Citrobacter freundii 5. Clostridium sporogenes 6. Corynebacterium xerosis 7. Enterobacter aerogenes 8. Enterococcus faecalis 9. Escherichia coli 10. Klebsiella pneumoniae 11. Lactococcus lactis 12. Micrococcus luteus 13. Micrococcus roseus 14. Morganella morganii 15. Mycobacterium smegmatis 16. Neisseria subflava 17. Proteus mirabilis 18. Proteus vulgaris 19. Pseudomonas aeruginosa 20. Pseudomonas fluorescens 21. Serratia marcescens 22. Staphylococcus aureus 23. Staphylococcus epidermidis 24. Streptococcus mutans
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Some possible characteristics to consider are: - Gram stain reaction (positive or negative) - Shape (rod-shaped, cocci, etc.) - Oxygen requirement (aerobic or anaerobic) - Motility (motile or non-motile) - Biochemical tests (e.g., ability to ferment certain Show more…
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Bacteria Identification Assignment: Making a Key Make a key that you can use to identify a shortlist of bacteria, just like what lab techs do in a clinical setting. Alcaligenes faecalis Bacillus subtilis Citrobacter freundii Enterococcus faecalis Escherichia coli/E. coli Klebsiella pneumoniae Lactococcus lactis Micrococcus luteus Proteus mirabilis Proteus vulgaris Staphylococcus aureus Staphylococcus faecalis
Madhur L.
Please make a dichotomous key (flow chart) to identify each of the unknown bacteria listed below, using the tests and media listed after the bacteria's list. Bacteria: 1. Bacillus cereus 2. Bacillus subtilis 3. Campylobacter jejuni 4. Citrobacter freundii 5. Clostridium perfringens 6. Clostridium septicum 7. Corynebacterium pyogenes 8. Corynebacterium ulcerans 9. Enterobacter aerogenes 10. Enterococcus durans 11. Enterococcus faecalis 12. Escherichia coli 13. Klebsiella oxytoca 14. Listeria monocytogenes 15. Micrococcus luteus 16. Moraxella bovis 17. Neisseria mucosa 18. Proteus mirabilis 19. Pseudomonas aeruginosa 20. Pseudomonas fluorescens 21. Salmonella bongori 22. Serratia marcescens 23. Staphylococcus aureus 24. Staphylococcus epidermidis 25. Staphylococcus saprophyticus 26. Streptococcus gallolyticus 27. Streptococcus pneumoniae 28. Streptococcus pyogenes 29. Yersinia pestis Available Tests: 1. Gram-stain 2. SIM – Sulfur, Indole, Motility 3. Nitrate Reduction 4. Encapsulated 5. Bile esculin 6. Mannitol Salt Agar 7. Catalase 8. Oxidase 9. Nitrate Reduction 10. Gelatin Hydrolysis 11. Mannitol Fermentation 12. Glucose Fermentation 13. Lactose Fermentation 14. Citrate 15. Eosin Methylene Blue
Derrick D.
List of Possible Unknown Organisms: - Proteus mirabilis - Bacillus subtilis - Vibrio cholerae - Enterococcus faecalis - Escherichia coli - Staphylococcus aureus - Staphylococcus epidermidis - Pseudomonas aeruginosa - Streptococcus pyogenes - Streptococcus pneumoniae - Salmonella typhimurium - Klebsiella aerogenes
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