AEM 341 Lab Final EXAM WITH ANSWERS

AEM 341 Lab Final EXAM WITH
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ANSWERS


What are the 3 tests in SIM - CORRECT ANSWERS ✔✔Sulfide,
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Indole, Motility
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What happens during a positive sulfide test? - CORRECT
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ANSWERS ✔✔Sulfate is reduced to sulfide
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How does sulfide test show a positive result, what bacteria is
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sulfide positive? - CORRECT ANSWERS ✔✔Positive- black spot, P.
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Vulgaris


How does an Indol test show a positive result? - CORRECT
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ANSWERS ✔✔Kolac reagent turns cherry red
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What bacteria is Indol positive? - CORRECT ANSWERS ✔✔E. coli
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How does a motility test show a positive test results? - CORRECT
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ANSWERS ✔✔bacteria stay in middle of needle poke
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What bacteria is motility positive? - CORRECT ANSWERS ✔✔P.
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Vulgaris


What 3 tubes are used for a fermentation test? - CORRECT
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ANSWERS ✔✔Glucose, Sucrose, and Lactose
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, How does a fermentation test show a positive acid result? -
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CORRECT ANSWERS ✔✔turns yellow with phenol red
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How does a fermentation test show a positive gas result? -
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CORRECT ANSWERS ✔✔gas bubble in durham tube
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How does a fermentation test show a positive alkaline result? -
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CORRECT ANSWERS ✔✔turns pink
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What bacteria is alkaline positive? - CORRECT ANSWERS ✔✔P.
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Vulgaris


What bacteria is gas positive? - CORRECT ANSWERS ✔✔E. coli
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What bacteria is acid positive? - CORRECT ANSWERS ✔✔E. coli
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What happens during a catalase test? - CORRECT ANSWERS
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✔✔Peroxide is converted to O2 and H2O
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What agar do you not perform a catalase test on? - CORRECT
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ANSWERS ✔✔Blood agar
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What will happen is a catalase test is done on blood agar? -
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CORRECT ANSWERS ✔✔result will always be positive
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