Q: What would be the expected out come of a triple sugar iron test If the bacteria is a pathogenic…
A: TRIPLE SUGAR IRON TEST 1.The Triple Sugar Iron test is a microbiological test having ability to test…
Q: Between Enterobacter aerogenes and Enterobacter cloacae, which are positive or negative for methyl…
A: methyl red and Voges Proskauer tests both are biochemical tests for identifying bacteria in…
Q: If the pH indicator were left out of MacConkey agar, the medium would bea) complex.b)…
A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…
Q: What would be the expected out come of a phenol red test If the bacteria is a pathogenic intestinal…
A: Phenol Red Broth is a general-purpose differential test medium typically used to differentiate…
Q: Thermotolerant coliforms are often referred to as "faecal coliforms", although the organisms may not…
A: Microbes particularly bacteria occurs in diverse areas in the environment. They are of different…
Q: Which one of the following methods of antimicrobial susceptibility testing requires a dilution…
A: Antimicrobial susceptibility testing is a method which is used for determination of antimicrobials…
Q: Are the large numbers of microorganisms found in the mouth cause for concern? Explain.
A: We are authorized to answer one question at a time.Since you have not mentioned which one,I am…
Q: If coliforms were present on a plated sample, would you know with certainty that the coliforms are…
A: Coliform microbes are characterized as rod-shaped, gram-negative, non-spore-forming, and…
Q: Which of the following tests can be used to distinguish between group D streptococcus and other…
A: Group D is the classification of streptococcus bacteria. These are gram positive bacteria, have…
Q: If five colonies were counted on a 10–3 dilution plate streaked with 0.01 mlof urine, what was the…
A: The standard plate count estimates the total aerobic population density of microbes in a sample by…
Q: Why do we test water for coliforms if they are not considered pathogenic?
A: Introduction Coliforms are gram-negative, non-sporulating and motile or immotile bacteria. They…
Q: discuss the clinical significance, principles, reagents (if any) and positive and negative results…
A: *Note: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…
Q: Is the Triple-Sugar Iron Agar (TSIA) a complex or defined medium? Explain based on its composition.…
A: A growth medium is a also known as a culture medium which can be solid, liquid, and even…
Q: Describe how each of the following would appear when grown on EMB agar: a. Escherichia coli b.…
A: EMB stands for Eosin Methylene Blue. This media is used as a seletive stain for the gram negative…
Q: In the multiple fermentation tube technique does the absence of gas formation after 24 hours…
A: Coliform microbes are life forms that are available in the climate and in the defecation of all…
Q: If a yellow halo is present around a colony on a mannitol salt agar (MSA) plate, the bacterium…
A: Mannitol salt agar (MSA) is used as a culture medium or growth medium. Growth medium is a medium…
Q: EXPLAIN THE PURPOSE OF THE METHYL RED AND VOGES-PROSKAUER TESTS IN DETERMINING THE IDENTITY OF GRAM…
A: Enterobacteriaceae are the group of various gram-negative bacteria that are responsible for various…
Q: ould be the effect on your judement of a Gram reaction of an organism if you stain a thick smear…
A: Staining is a process of the well-known structure of the microscopy technique for enhancing contrast…
Q: Is the Peptone Iron Agar (PIA) a complex or defined medium? Explain based on its composition. Is the…
A: Depending on their composition, media can be classified as defined and undefined media. Defined…
Q: If SIM medium was used for motility determination for Proteus vulgaris, what noticeable change to…
A: What is motility? Motility is the ability of an organism to move by itself. Eucaryotic cells use…
Q: You saw no color change in both the first step and second step of the Nitrate Reduction test. What…
A: A nitrate reduction test is a test done to test whether the Enterobacteriaceae member produces the…
Q: Why do we use the term CFU (colony forming unit) instead of reporting bacteria per ml? Explain.
A: The bacterial species are responsible for causing several diseases within the human body. So, for…
Q: In what ways is the membrane filter method for coliform detection superior to the most probable…
A: Coloriform are group of bacteria present in the feces of several warm-blooded animals and human.…
Q: You were given a mixed nutrient agar broth culture of bacteria 1a. How will you determine the…
A: A mixed bacterial culture consists of more than one bacterial cell types growing together. On the…
Q: The students of a Microbiology class were tasked to transfer or subculture a pure culture of…
A:
Q: Does a positive presumptive test mean that the water is absolutely unsafe to drink? Explain
A: Water is tasteless, transparent, inorganic. Colorless, and odorless chemical substance. Its chemical…
Q: If a yellow halo is present around a colony on a mannitol salt agar (MSA) plate, the bacterium…
A: Manitol Salt Agar (MSA) in used in lab, mostly for selective and differential growth of microbial…
Q: not test water samples directly for Salmonella typhosa or other pathogens
A: There are serious limitations to the use of direct isolation of specific pathogenic bacteria for…
Q: If the five-digit code that is tabulated cannot be found in the EnteroPluri-Test Codebook, what that…
A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…
Q: What is the media used in Urease Test and expected results?
A: Urease test is defined as a biochemical test that distinguishes the basic alkaline fermentation of…
Q: What would be the expected outcome of an endospore stain test If the bacteria is a pathogenic…
A: Endospore stain is a differential stain that is used to image endospores in bacteria. A few genera…
Q: Which of the following tests can be used to distinguish between Enterobacter and Pseudomonas…
A: Introduction Small, single-celled organisms are known as bacteria. Nearly every place on Earth…
Q: When testing antimicrobial compounds on lawns of plated bacteria, the strongest germicide could…
A: Bacteria are prokaryotic unicellular organisms that are omnipresent in the environment. There are…
Q: Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL…
A: Serial Dilution -- Serial dilution are used to calculate the concentration of microorganism .It…
Q: From figure shows triplesugar iron agar. What biochemical characteristics does this…
A: “Triple sugar iron test” is one of the “biochemical tests” used to test the ability of microbe in…
Q: In a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria:…
A: triple sugar ion test or TSI is a confirmatory as well as a differentiative biochemical test which…
Q: Once the completed test establishes the presence of coliforms in the water sample, why might you…
A: Water is tasteless, transparent, inorganic. Colorless, and odorless chemical substance. Its chemical…
Q: Do the results from a confirmed coliform test represent total or faecal coliform and why?
A: Fecal coliform bacteria may occur in ambient water as a result of the overflow of domestic sewage or…
Q: What microorganisms other than coliforms are likely to give positive presumptive test?
A:
Q: What would be the expected out come of a gram staining test If the bacteria is a pathogenic…
A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…
Q: If testing had come back as oxidase negative, urease positive and growth on MacConkey agar, what…
A: MacConkey agar is a selective and differential culture medium used for the isolation and…
Q: Why should be avoided boiling more than 5 minutes in Barfoid test?
A: Barfoed test is carried out to detect the presence of monosaccharides in the sample. This test also…
Q: Describe the process of qualitative water test for coliform contamination. If shown EMB plates, be…
A: * Coliform bacteria are Bacteria and stains Gram negative and they can be motile or non motile…
Q: which tests involves deliberate contamination of an inanimate surface with a mircobial suspension?
A: According to the question, we have to explain the name of the test involves in deliberate…
Q: If the five-digit code that is tabulated cannot be found in the EnteroPluri-Test Codebook, what…
A: Introduction: EnteroPluri-Test is an identification system that offers complete identification of…
Q: Clear tubes in the MIC test were inoculated in Mueller-Hinton Agar to determine the MBC of the…
A: MBC - stands for minimum bactericidal concentration It is the lowest concentration of antibiotics…
What would be the expected out come of a Nitrate reduction test If the bacteria is a pathogenic intestinal bacteria?
Nitrate Reduction Test is used to determine the ability of an organism to reduce nitrate (NO3) to nitrite (NO2) using the enzyme nitrate reductase. It also tests the ability of organisms to perform nitrification on nitrate and nitrite to produce molecular nitrogen.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- What would be the expected out come of a gram staining test If the bacteria is a pathogenic intestinal bacteria?What would be the expected out come of a triple sugar iron test If the bacteria is a pathogenic intestinal bacteria?Why is water tested for coliform bacteria rather than for pathogenic bacteria which may be present?
- Why should an absorbent container not be used in collecting fecal material?What microorganisms besides coliforms are liable to give a positive presumptive test?Is the Triple-Sugar Iron Agar (TSIA) a complex or defined medium? Explain based on its composition. Is the test tube a A) broth, B) slant, or C) deep agar medium? Why is a “needle” used to inoculate?
- What is the most commonly used fixative in stool samples and why? Why is staining of stool samples very important in identifying parasites? Why is direct fecal smear a routine procedure in the parasitology section?In a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria: Enterobacter aerogenes, Pseudomonas aeruginosa, Salmonella typhimurium, and Serratia marcescens?Why can EMB agar be used to detect the presence of E. coli in particular? Explain the principle of detection of the organism using EMB agar
- Why does the oxidase test must be performed from blood agar or another medium without a fermentable sugar as MacConkey agar?can the phenol red test also be used to determine if a certain bacterium can metabolze various carbohydrates?When using Endo agar as the selective and differential media for the confirmed test, how would you know whether the test is positive for the presence of coli?