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)
Add Answer to:
Microbiology - Gram Positive (ONLY answer)
[Q1] Which organism is the only one that is positive...
Microbiology - Gram Positive (ONLY answer) [Q1] Which organism did not ferment mannitol? [Q2] We observe...
Microbiology - Gram Positive (ONLY answer) [Q1] Which organism did not ferment mannitol? [Q2] We observe color change on Mueller Hinton agar. (True/ False) [Q3] Which organism was resistant to novobiocin? [Q4] Your organism is catalase negative and produces a black precipiate on bile. What other test would likely be positive?
Microbiology - Gram Positive (ONLY answer) [Q1] This organism is mainly associated with the resident flora...
Microbiology - Gram Positive (ONLY answer) [Q1] This organism is mainly associated with the resident flora of the mouth and gums. - Streptococcus salivarius - Staphylococcus aureus - Streptococcus pneumonia - Escherichia coli [Q2] An example of a selective and differential medium is ... - 6.5% NaCl - Blood Agar - Bile Esculin - Tryptic Soy Agar (TSA) [Q3] An organism is considered resistant to the antibiotic bacitracin if which occurs? - There is no zone of clearing around the...
Microbiology - Gram Positive (ONLY answer) [Q1] A clear zone on blood agar is also known...
Microbiology - Gram Positive (ONLY answer) [Q1] A clear zone on blood agar is also known as _____________ hemolysis. [Q2] Which organism is the only one that can grow in the presence of 6.5% salt? [Q3] What color would you observe for an organism that is negative for mannitol fermentation?
Microbiology - Gram Positive (ONLY answer) [Q1] Bile Esculin is used to distinguish - Streptococci and...
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Microbiology - Gram Positive (ONLY answer) [Q1] A positive catalase test shows - Bubbles - Appearance...
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Microbiology - Gram Positive (ONLY answer) [Q1] Enterococci and Streptococci are Gram-negative organisms. - True -...
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Microbiology - Gram Positive (ONLY answer) [Q1] How can you differentiate Staphylococcus and Streptococcus under the...
Microbiology - Gram Positive (ONLY answer) [Q1] How can you differentiate Staphylococcus and Streptococcus under the microscope? [Q2] Your organism is catalase negative and produces a black precipiate on bile. What other test would likely be positive?
Microbiology - Gram Positive (ONLY answer) [Q1] You are observing microbes with the 100x objective. What...
Microbiology - Gram Positive (ONLY answer) [Q1] You are observing microbes with the 100x objective. What is the total magnification? [Q2] Which organism is positive for mannitol fermentation and alpha hemolytic?
Microbiology Q1 Q2 Q3 What is the color of SIM medium that contains an organism that...
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)
Microbiology Q1 Q2 Q3 One organism that is positive for citrate is You added methyl red...
Microbiology
Q1
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)
Microbiology
Q1
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?
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