Homework Answers
Question
The mannitol salt agar (MSA) is used as a selective media because it select the bacteria which could live in specific conditions. For example, Staphylococcus species could survive in high salt concentration and MSA will act as a selective media to select these bacteria.
On the other hand, MSA is also a differential media as it allow the growth of both gram positive as well as gram negative bacteria.
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1 Why is mannitol salt agar considered a selective as well as a differential media?
Mannitol salt agar (MSA) is a both a selective and differential medium. Which of the following...
Mannitol salt agar (MSA) is a both a selective and differential medium. Which of the following regarding MSA is TRUE? (There may be more than one answer) ( MSA turns yellow when bacteria are able to ferment maltose I MSA selects for acid tolerant bacteria () MSA turns yellow when bacteria are able to ferment mannitol MSA selects for salt tolerant bacteria
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
Mailings 15.15. Differential and selective media lab (2) (Compatibility Mode] Review View . 3 3 +...
Mailings 15.15. Differential and selective media lab (2) (Compatibility Mode] Review View . 3 3 + 1 AaBbCcDdEe AaBbCcDdEe AaBb CD AaBb CcDdl Aa ER No Spacing Heading 1 Heading 2 Normal Inhibitors Name of agar Phenylethyl alcohol Agar (PEA) Substrate None (not a differential media) Polyphenyl alcohol - affects cell membrane and DNA synthesis Indicators Notes/ expected results None (not a differential Inhibits many Gram media) negatives and some gram positives. Used to select for streptococci, enterococci, and staphylococci...
consider the organisms S. aureus grown in the media mannitol salt agar plate and tryptic soy...
consider the organisms S. aureus grown in the media mannitol salt agar plate and tryptic soy agar plate. , and E. coli grown in the media tryptic soy agar plate and eosin methylene blue plate Where are they found? What is know about their metabolic capabilities as related to the media?
Background Ques part 1) Selective and differential media; EMB and Tsl agar bacill inhabit a wide...
Background
Ques part 1)
Selective and differential media; EMB and Tsl agar bacill inhabit a wide range of environments. Many are significant pathogens, such a coli, Salmonella, Shigella, but many compose our normal flora and inhabit soil and water. Many gra negative bacilli that inhabit our large intestine are called enterics. Enteric pathogens are the most frequent cause of diarrheal illnesses and have become significant contaminants spread through foo Some can also cause respiratory and urinary infections. Experiment 1: EMB...
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...
answer all... please (1 pts) 16) Indicate whether phenol red lactose fermentation broth is a selective...
answer all... please
(1 pts) 16) Indicate whether phenol red lactose fermentation broth is a selective or differential media by marking the appropriate box(es). If the medium is both selective and differential, mark both. If the medium is neither selective nor differential, check the "neither" box: selective o differential Oneither (1 pts) 17) Indicate whether mannitol salt agar is a selective or differential media by marking the appropriate box(es). If the medium is both selective and differential, mark both. If...
Indicate the specific selective and Avifferential purpose of each of the following media: (9 pts) please...
Indicate the specific selective and Avifferential purpose of each of the following media: (9 pts) please provide only a short phrase for each media) Phenylethyl alcohol agar: a. Crystal violet agar: b. 7.5% sodium chloride agar: c. Mannitol salt agar: d. MacConkey agar: e. Eosin-methylene blue agar (Levine): Blood agar:
What is the carbon source, nitrogen source, selective chemicals, media classification for each agar plates? Alkaline...
What is the carbon source, nitrogen source, selective chemicals, media classification for each agar plates? Alkaline Soy Flour Mannitol-NC Agar SpM-NC (Nystatin) Agar Glycerol Arginine-NC Agar Acidified ISP medium 2-NC agar
uestion 1 Growth of an organism on mannitol salt agar plates indicates that the organism ferments...
uestion 1 Growth of an organism on mannitol salt agar plates indicates that the organism ferments mannitol. tolerates acid. tolerates salt up to 7.5%. is Gram-positive.
Mannitol salt agar (MSA) is a both a selective and differential medium. Which of the following regarding MSA is TRUE? (There may be more than one answer) ( MSA turns yellow when bacteria are able to ferment maltose I MSA selects for acid tolerant bacteria () MSA turns yellow when bacteria are able to ferment mannitol MSA selects for salt tolerant bacteria
Mailings 15.15. Differential and selective media lab (2) (Compatibility Mode] Review View . 3 3 + 1 AaBbCcDdEe AaBbCcDdEe AaBb CD AaBb CcDdl Aa ER No Spacing Heading 1 Heading 2 Normal Inhibitors Name of agar Phenylethyl alcohol Agar (PEA) Substrate None (not a differential media) Polyphenyl alcohol - affects cell membrane and DNA synthesis Indicators Notes/ expected results None (not a differential Inhibits many Gram media) negatives and some gram positives. Used to select for streptococci, enterococci, and staphylococci...
Background
Ques part 1)
Selective and differential media; EMB and Tsl agar bacill inhabit a wide range of environments. Many are significant pathogens, such a coli, Salmonella, Shigella, but many compose our normal flora and inhabit soil and water. Many gra negative bacilli that inhabit our large intestine are called enterics. Enteric pathogens are the most frequent cause of diarrheal illnesses and have become significant contaminants spread through foo Some can also cause respiratory and urinary infections. Experiment 1: EMB...
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...
answer all... please
(1 pts) 16) Indicate whether phenol red lactose fermentation broth is a selective or differential media by marking the appropriate box(es). If the medium is both selective and differential, mark both. If the medium is neither selective nor differential, check the "neither" box: selective o differential Oneither (1 pts) 17) Indicate whether mannitol salt agar is a selective or differential media by marking the appropriate box(es). If the medium is both selective and differential, mark both. If...
Indicate the specific selective and Avifferential purpose of each of the following media: (9 pts) please provide only a short phrase for each media) Phenylethyl alcohol agar: a. Crystal violet agar: b. 7.5% sodium chloride agar: c. Mannitol salt agar: d. MacConkey agar: e. Eosin-methylene blue agar (Levine): Blood agar:
uestion 1 Growth of an organism on mannitol salt agar plates indicates that the organism ferments mannitol. tolerates acid. tolerates salt up to 7.5%. is Gram-positive.
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