Name one media that will only allow Gram positive bacteria, but not Gram negative bacteria to...
Name one media that will only allow Gram positive bacteria, but not Gram negative bacteria to grow and describe how this media select for gram positive bacteria.
Homework Answers
The media that will only allow Gram positive bacteria, but not Gram negative bacteria is Mannitol salt agar (MSA). The major principle of the MSA is that it selects the mannitol fermenting bacteria and allows the growth of gram positive bacteria only. The Gram negative bacteria do not able to ferment mannitol in the presence of high salt concentration (10% NaCl), hence they will be dead to osmotic imbalance.
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Name one media that will only allow Gram positive bacteria, but
not Gram negative bacteria to...
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram...
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram staining procedure. (Be sure to account for the procedure, the reagent, and the colors of Gram negative and Gram positive bacteria in your description.)
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell...
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43.Lipopolysaccharides (LPS) are found in: a. Gram-positive bacteria b. Gram-negative bacteria c. all Bacteria d. Archaea...
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Describe the process that allow Gram-positive bacteria to be tolerant to harsh environmental conditions. Explain why...
Describe the process that allow Gram-positive bacteria to be tolerant to harsh environmental conditions. Explain why these bacteria are a threat in food industry.
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How...
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How do you know? 5. Does this bacteria ferment lactose? How do you know?
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two...
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two are Gram negative bacteria but you have mixed up the labels. You know that one of the Enteric bacteria can ferment glucose and produce ethanol and CO_2. The other can ferment glucose and produce lactic acid. Describe the general procedure you could perform to determine of the three cultures which one is which? A one gram sample of hamburger is diluted to 10^-4 in...
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Pre-Lab Questions: After staining what color will Gram positive bacteria be? What color will Gram negative...
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Please look at these two photos of an unknown gram positive and gram negative bacteria that...
Please look at these two photos of an unknown gram positive and
gram negative bacteria that were Gram stained. What is the
morphology/characteristics of these unknown bacteria?
AA
We were unable to transcribe this imageWe were unable to transcribe this image
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram staining procedure. (Be sure to account for the procedure, the reagent, and the colors of Gram negative and Gram positive bacteria in your description.)
MacConkey agar questions 4. Would this bacteria be a Gram positive or a Gram negative? How do you know? 5. Does this bacteria ferment lactose? How do you know?
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two are Gram negative bacteria but you have mixed up the labels. You know that one of the Enteric bacteria can ferment glucose and produce ethanol and CO_2. The other can ferment glucose and produce lactic acid. Describe the general procedure you could perform to determine of the three cultures which one is which? A one gram sample of hamburger is diluted to 10^-4 in...
Please look at these two photos of an unknown gram positive and
gram negative bacteria that were Gram stained. What is the
morphology/characteristics of these unknown bacteria?
AA
We were unable to transcribe this imageWe were unable to transcribe this image
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