Draw a flowchart (dichotomous key) to identify each of
the following bacteria using ONLY the biochemical tests and media
listed below:
1. Serratia marcescens
2. Pseudomonas aeruginosa
3. Escherichia coli
4. Alcaligenes faecalis
5. Enterobacter aerogenes
6. Proteus vulgaris
Please use ONLY the tests or media in the picture.
Thank you
List of tests and media available for Identification of Unknown Bacteria Gram’s staining Simple staining Endospore staining (only if it’s really necessary) Motility Glucose Fermentation Lactose Fermentation Mannitol Fermentation Methyl Red Test Casein Hydrolysis Acid-Fast Staining MacConkey Agar Eosin Methylene Blue Agar Starch Hydrolysis Lipid Hydrolysis Indole Test Catalase Test Oxidase Test Nitrate Reduction Gelatin Hydrolysis Citrate Test Urease Test Mannitol Salt Agar 6.5% NaCl Agar





