Microbiology - Gram Positive (ONLY answer) [Q1] Which organism is the only one that is positive...
Microbiology - Gram Positive (ONLY answer)
[Q1] Which organism is the only one that is positive for bile esculin?
[Q2] Which color was the bile esculin for the above organism?
[Q3] Which of the organisms that we studied partially digested the blood cells in BAP?
Homework Answers
Q1). Bile Esculin Agar (BEA) is used to isolate and identify members of the genus ENTEROCOCCUS by inhibiting the growth of other accompanying gram-positive bacteria.
Thus, the correct answer is " ENTEROCOCCUS"
Q2). Enterococcus turns the bile esculin medium BLACK.
Q3). Alpha-hemolytic organisms partially digest blood cells in BAP.
(Beta-hemolytic: complete lyse , alpha-hemolytic: no change)
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Microbiology - Gram Positive (ONLY answer)
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Microbiology
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Q2
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What is the color of SIM medium that contains an organism that forms hydrogen sulfide (is positive for sulfur)? Blue Black Red Yellow Which test(s) would you use to find out more about Gram-positive organisms? SIM MR Citrate None of the tests listed. Fermentation of sugars usually results in end products. Acidic Basic (Alkaline)
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Q2
Q3
One organism that is positive for citrate is You added methyl red to your MR test and observe a red color. The test result can be interpreted as You forgot to label a tube with a slant but you remember that its original color was green and now after incubation, the slant color is blue. What is the name of the test?
Microbiology
Q1
Q2
Q3
What is the color of SIM medium that contains an organism that forms hydrogen sulfide (is positive for sulfur)? Blue Black Red Yellow Which test(s) would you use to find out more about Gram-positive organisms? SIM MR Citrate None of the tests listed. Fermentation of sugars usually results in end products. Acidic Basic (Alkaline)
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One organism that is positive for citrate is You added methyl red to your MR test and observe a red color. The test result can be interpreted as You forgot to label a tube with a slant but you remember that its original color was green and now after incubation, the slant color is blue. What is the name of the test?
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