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?
Homework Answers
[Q1] Answer: A clear zone on blood agar is also known as Beta hemolysis. Beta-hemolysin completely breaks the red blood cells and hemoglobin.This provides a clear zone around the bacterial growth. Such clear zone are known as β-hemolysis (beta hemolysis).
[Q2] Answer: Enterococci is the only organism that can grow in the presence of 6.5% salt. They are resistant to high salt concentration and show growth in medium containing salt.
[Q3] Answer:Small pink or Red color can be observe for an organism that is negative for mannitol fermentation. In mannitol fermentation, negative organism produce small pink or red colonies with no colour change to the medium.
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Microbiology - Gram Positive (ONLY answer)
[Q1] A clear zone on blood agar is also known...
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Microbiology - Gram Positive (ONLY answer) [Q1] Which organism did not ferment mannitol? [Q2] We observe...
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Microbiology - Gram Positive (ONLY answer) [Q1] Which organism is the only one that is positive...
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Microbiology - Gram Positive (ONLY answer) [Q1] Enterococci and Streptococci are Gram-negative organisms. - True -...
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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
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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