How is this test used diagnostically? Which bacteria is more virulent and why? using the Catalase...
How is this test used diagnostically? Which bacteria is more virulent and why? using the Catalase test and the bacterias being Staphylococcus aureus and Staphylcocccus epidermidis
Homework Answers
The catalase test is used to detect the presence of catalase enzyme by the decomposition of hydrogen peroxide to release oxygen and water.when a small amount of bacteria is isolate is added to hydrogen peroide bubbles of oxgen are observed.
s.aureus is more virulent, because s.aureus is coagulase positive and expresses several virulence factors which support evasion of he host immune response .
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How is this test used diagnostically? Which bacteria is more
virulent and why? using the Catalase...
4) Which of the bacteria grew well in 6.5% NaCl? Which bacteria did not grow well...
4) Which of the bacteria grew well in 6.5% NaCl? Which bacteria did not grow well in 6.5% NaCl? Based on your knowledge of the normal microflora, do these results make sense? Why or why not? The bacterias that grew well in 6.5% NaCl were the Staph bacteria (Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus saprophyticus), Micrococcus luteus, and Enterococcus faebalis. The bacterias that did not grow well in 6.5% NaCl were Streptococcus pyogenes and Streptococcus pneumoniae.
what bacteria is this for my unknown test MCB2010L staphylococcus aureus 11B bacterias are: stapphylococcus aureus,...
what bacteria is this for my unknown test MCB2010L
staphylococcus aureus
11B bacterias are: stapphylococcus aureus, Bacillus Subtilus please answer all of the work sheet please Report Sheet for Second Bacterial Identification (Second Uniknown) Test Qetal T NA LE N MAT SPECIMEN No UNKNOWN CULTUREB UNKNOWN CULTURE A MORPHOLOGICAL TESTS sAPE ARRANGEMENT CRAM STAIN ACIDFAST STAIN ENDOSPORE STAIN FERMENTATION TESTS Gas Acid Acid Gas TYPE OF CARBOHYDRATE LACTOSE DEXTROSE MANNITOL TESTS PHYSIOLOGICAL NITRATE REDUCTION CITRATE UTILIZATION STARCH HYDROLYSIS CATALASE TEST...
catalase test EXPERIMENT 30 LAB REPORT OBSERVATIONS AND RESULTS Record your observations in the following chart....
catalase test
EXPERIMENT 30 LAB REPORT OBSERVATIONS AND RESULTS Record your observations in the following chart. Bacteria Foaming or No Foaming Catalase Present Absent M. luteus S. aureus S. lactis 1. Review Questions: 1. Explain why the enzyme catalase is essential for the survival of many aerobic and facultative anaerobic organisms? 2. Explain how catalase negative bacteria are capable of growing in the presence of oxygen Experiment 30 Catalase Test 273 3. Can bacterial cultures grown on blood agar be...
There may be more Which of the bacteria (A-E) would you expect to be catalase positive...
There may be more Which of the bacteria (A-E) would you expect to be catalase positive and why? than one of the bacteria positive for catalase. A OBLIGATE AEROBE B FACULTATIVE ANAEROBE CAEROTOLERANT ANAEROBE D OBLIGATE ANAEROBEE MICROAEROPHILE Extra: In a Gram stain one step could be omitted and still allow differentiation between Gram positive and Gram negative bacteria. What is that step? Why?
Which of the bacteria (A-E) would you expect to be catalase positive and why? There may...
Which of the bacteria (A-E) would you expect to be catalase positive and why? There may be more than one of the bacteria positive for catalase. A. Obligate Aerobe B. Facultative Anaerobe C. Aerotolerant Anaerobe D. Obligate Anaerobe E. Microaerophile
a catalase test is usually not performed on bacteria growing on a blood agar plate. Why...
a catalase test is usually not performed on bacteria growing on a blood agar plate. Why not?
Which groups of bacteria produce catalase & SOD? Why is it necessary to do so?
Which groups of bacteria produce catalase & SOD? Why is it necessary to do so?
How the antibiotic of Neomycin, Kanamycin, Streptomycin and chloramphenicol kill the bacteria of Staphylococcus epidermidis? if...
How the antibiotic of Neomycin, Kanamycin, Streptomycin and chloramphenicol kill the bacteria of Staphylococcus epidermidis? if not why?
2. The MIC, Kirby Bauer and E-TEST are all tests that are used to determine which...
2. The MIC, Kirby Bauer and E-TEST are all tests that are used to determine which antibiotics work against specific bacteria. a. Your patient comes in with a Staphylococcus aureus infection and you know that tetracycline kills S. aureus, but you want to prescribe the patient with the lowest concentration of tetracycline, which test would you conduct to find the lowest concentration that killed off S. aureus? b. Your patient comes in with a mystery bacterial infection. You want to...
You used E.coli, Staphylococcus aureus, and XL1-Blue II cells for the UV experiment. Which bacteria are...
You used E.coli, Staphylococcus aureus, and XL1-Blue II cells for the UV experiment. Which bacteria are the most UV sensitive and which bacteria are the least sensitive of these three? Give a detailed explanation!
what bacteria is this for my unknown test MCB2010L
staphylococcus aureus
11B bacterias are: stapphylococcus aureus, Bacillus Subtilus please answer all of the work sheet please Report Sheet for Second Bacterial Identification (Second Uniknown) Test Qetal T NA LE N MAT SPECIMEN No UNKNOWN CULTUREB UNKNOWN CULTURE A MORPHOLOGICAL TESTS sAPE ARRANGEMENT CRAM STAIN ACIDFAST STAIN ENDOSPORE STAIN FERMENTATION TESTS Gas Acid Acid Gas TYPE OF CARBOHYDRATE LACTOSE DEXTROSE MANNITOL TESTS PHYSIOLOGICAL NITRATE REDUCTION CITRATE UTILIZATION STARCH HYDROLYSIS CATALASE TEST...
catalase test
EXPERIMENT 30 LAB REPORT OBSERVATIONS AND RESULTS Record your observations in the following chart. Bacteria Foaming or No Foaming Catalase Present Absent M. luteus S. aureus S. lactis 1. Review Questions: 1. Explain why the enzyme catalase is essential for the survival of many aerobic and facultative anaerobic organisms? 2. Explain how catalase negative bacteria are capable of growing in the presence of oxygen Experiment 30 Catalase Test 273 3. Can bacterial cultures grown on blood agar be...
There may be more Which of the bacteria (A-E) would you expect to be catalase positive and why? than one of the bacteria positive for catalase. A OBLIGATE AEROBE B FACULTATIVE ANAEROBE CAEROTOLERANT ANAEROBE D OBLIGATE ANAEROBEE MICROAEROPHILE Extra: In a Gram stain one step could be omitted and still allow differentiation between Gram positive and Gram negative bacteria. What is that step? Why?
2. The MIC, Kirby Bauer and E-TEST are all tests that are used to determine which antibiotics work against specific bacteria. a. Your patient comes in with a Staphylococcus aureus infection and you know that tetracycline kills S. aureus, but you want to prescribe the patient with the lowest concentration of tetracycline, which test would you conduct to find the lowest concentration that killed off S. aureus? b. Your patient comes in with a mystery bacterial infection. You want to...
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