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- Why should air bubbles be avoided in the preparation of fecal smears?Define α (alpha) hemolytic, β (beta) hemolytic, and γ (gamma) hemolytic and describe how each look on blood agar platesIn a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria: Enterobacter aerogenes, Pseudomonas aeruginosa, Salmonella typhimurium, and Serratia marcescens?
- Explain Emulsions. What variations are there? Give an illustration of each category. Create two emulsification programmes.Show a diagram of beta-hemolysis and alpha-hemolysis by different bacteria on blood agar and explain with detail.Between Enterobacter aerogenes and Enterobacter cloacae, which are positive or negative for methyl red and Voges Proskauer test results?
- In your own words, explain how you determine the susceptibility for tooth decay for individuals using the Snyder test? ( your answer should refer to lactic acid production, pH indicator or color change and time component)What would be the expected out come of bile esculin test If the bacteria is a pathogenic intestinal bacteria?Please answer and explain. Provide references if possible: TOPIC: STAINING FECAL SMEARS 1.) What is the purpose of ethanol in the procedure of staining fecal smears?
- State whether Staphylococcus epidermidis and Staphylococcus aureus are negative or positive for oxidase test results.Why do you need to take samples from the bloody or mucoid portion of the entire stool?Explain the following tests using Pseudomonas aeruginosa. Describe the purpose, reagents used and the results using Pseudomonas aeruginosa.