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Mannitol salt agar (MSA) is a both a selective and differential medium. Which of the following...
Microbiology - Gram Positive (ONLY answer) [Q1] Mannitol salt agar is both selective and differential. -...
Microbiology - Gram Positive (ONLY answer) [Q1] Mannitol salt agar is both selective and differential. - True - False [Q2] Mueller Hinton medium is a selective and differential medium. - True - False [Q3] 6.5% Salt broth is used to distinguish - Streptococci and Enterococci - Streptococci and Staphylococci - E. coli and Salmonella - Enterobacter and Streptococci
help please On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium...
help please
On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium color from light orange to bright yellow. The color indicator is phenol red. This bacterium must be capable of: Select one: O a. Fermenting lactose to make acidic by-products. O b. Utilizing citrate as a main carbohydrate source to grow. O c. Fermenting glucose to make acidic products, which lowers the pH of the MSA agar. O d. Fermenting mannitol to make acidic products,...
1 Why is mannitol salt agar considered a selective as well as a differential media?
1 Why is mannitol salt agar considered a selective as well as a differential media?
Multiple Choice. Highlight the single correct answer choice. 1. Streak plates are useful in microbiology to...
Multiple Choice. Highlight the single correct answer choice. 1. Streak plates are useful in microbiology to __________. quantify the number of bacteria measure turbidity identify bacteria determine cell shape 2. In the streak-plate technique, the intent is to isolate bacteria by dilution in theory by __________. dilution on a solid surface separating cells within the solid surface using a pipette dilution in water blanks 3. A pure culture consists of which of the following? one genus of microbe one species...
can somrone help me write an introduction for each agar. thank you ? Introduction: Selective and...
can somrone help me write an introduction for each agar. thank you
?
Introduction: Selective and differential media are used frequently in Microbiology Pathology Labs to identify a known group of bacteria from a complex mix of other bacteria. The medium is designed to select against as many of the background organisms as possible by using a medium in which they will not grow but the organisms under investigation can grow hence the "Selective" part of the name. Any assayable...
Q14. In the lab info it says that as a rule, most microbes can adjust to...
Q14. In the lab info it says that as a rule, most microbes can adjust to a range of salt concentrations. 7/29/2019 Which cell structure allows microbes to physically withstand hypotonic environments? Cell wall MSA has two properties. It is both selective and differential. When bacteria grow on this media, there is a visible difference between bacteria that ferment mannitol, and the bacteria that do not See Figure 2 (a)-effects of selective/differential media. Q15. Which of the following is correct...
- Describe a circumstance (e.g. in its’ natural environment) where Staphylococcus species bacteria might benefit from...
- Describe a circumstance (e.g. in its’ natural environment) where Staphylococcus species bacteria might benefit from being salt tolerant. - How might the ability to perform hemolysis benefit a hemolytic organism in its’ natural environment? - Imagine that you have a culture containing a single bacterial species. This culture may be one of several possible species. Describe a scenario where you use Mannitol Salt agar, Blood Agar, and EMB plates to identify the unknown bacterial species. That is, how would...
dyes, such as phenol red or methylene blue used in differential media? Why are dyes, such...
dyes, such as phenol red or methylene blue used in differential media? Why are dyes, such as A. to inhibit motility B. to stain microbes C to kill bacteria D. to see microbes to detect pH changes due to metabolism What is the purpose of differential medias to encourage growth of the desired bacteria B to isolate few bacteria to observe metabolism of the bacteria D. to stain bacteria E to determine motility 10 Why does Staphylococcus aureus turn yellow...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes such as phenol red, eosin or methylene blue added to the media? b. How does the bacterium change the media (i.e color of agar or colonies) after incubation? C. In this experiment, which media are selective, and which are differential? d. How did the results observe on the mannitol salt agar and EMB agar correlate to the Gram reaction of the bacteria? e. What...
All of the following are characteristic of Staphylococcus aureus EXCEPT 1- produces coagulase 2- ferments mannitol...
All of the following are characteristic of Staphylococcus aureus EXCEPT 1- produces coagulase 2- ferments mannitol 3- grows on an MSA plate (i.e., halotolerant) 4- grows in chains You have isolated gram-positive cocci from a throat culture that you cannot identify as staphylococci or streptococci. A test for one enzyme can be used to distinguish these bacteria quickly. What is the enzyme? 1- dogalase 2- catalase 3- lactamase A candle jar is used to culture Streptococci because they 1- grow...
help please
On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium color from light orange to bright yellow. The color indicator is phenol red. This bacterium must be capable of: Select one: O a. Fermenting lactose to make acidic by-products. O b. Utilizing citrate as a main carbohydrate source to grow. O c. Fermenting glucose to make acidic products, which lowers the pH of the MSA agar. O d. Fermenting mannitol to make acidic products,...
1 Why is mannitol salt agar considered a selective as well as a differential media?
can somrone help me write an introduction for each agar. thank you
?
Introduction: Selective and differential media are used frequently in Microbiology Pathology Labs to identify a known group of bacteria from a complex mix of other bacteria. The medium is designed to select against as many of the background organisms as possible by using a medium in which they will not grow but the organisms under investigation can grow hence the "Selective" part of the name. Any assayable...
Q14. In the lab info it says that as a rule, most microbes can adjust to a range of salt concentrations. 7/29/2019 Which cell structure allows microbes to physically withstand hypotonic environments? Cell wall MSA has two properties. It is both selective and differential. When bacteria grow on this media, there is a visible difference between bacteria that ferment mannitol, and the bacteria that do not See Figure 2 (a)-effects of selective/differential media. Q15. Which of the following is correct...
dyes, such as phenol red or methylene blue used in differential media? Why are dyes, such as A. to inhibit motility B. to stain microbes C to kill bacteria D. to see microbes to detect pH changes due to metabolism What is the purpose of differential medias to encourage growth of the desired bacteria B to isolate few bacteria to observe metabolism of the bacteria D. to stain bacteria E to determine motility 10 Why does Staphylococcus aureus turn yellow...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes such as phenol red, eosin or methylene blue added to the media? b. How does the bacterium change the media (i.e color of agar or colonies) after incubation? C. In this experiment, which media are selective, and which are differential? d. How did the results observe on the mannitol salt agar and EMB agar correlate to the Gram reaction of the bacteria? e. What...
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