1. Where is staphylococcus aureus commonly found? 2. What staphylococcus aureus its significance in medical microbiology? 3. Is staphylococcus aureus an obligate aerobe or facultative anaerobes?
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1. Where is staphylococcus aureus commonly found?
2. What staphylococcus aureus its significance in medical
3. Is staphylococcus aureus an obligate aerobe or facultative anaerobes?
4. can staphylococcus aureus catabolism glucose or lactose? Does it produce strong acid products such as lactic or acetic acid?
5. Does staphylococcus aureus produce by product that are converted to alcohols?
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- 1. Answer the following about Corynebacterium diphtheria... Oxygen requirement: Is it classified as an obligate aerobe, facultative anaerobe, microaerophile, aerotolerant, or an obligate anaerobe? Salt requirement: Is it classified as a nonhalophile, halotolerant, halophilic, or as an extreme halophile? pH requirement: Is it classified as an acidophile, a neutrophile, or an alkaliphile? Temperature requirement: Is it classified as a psychrophile, a mesophile, a thermophile, or a hyperthermophile?1.What the optimal pH range for Lactobacillus plantarum? Is plantarum an acidophile, neutraphile, or alkalophile? 2. LAB produce organic acids that have shown to be effective against controlling the growth of foodborne pathogens. What specific organic acid is produced by LAB during fermentation? 3.What is the optimal temperature range for Listeria monocyogenes? Is monocyogenes a psychrophile, psychrophile, mesophile, or thermophile?(1) Which of the following pieces of information need to be cited in a microbiology lab report?1. Pseudomonas aeruginosa is a Gram-negative bacillus Yes / No2. It is well established that P. aeruginosa is positive for both the catalase and cytochrome oxidasetests Yes / No3. A recent study found that hyperbaric oxygen treatment might increase P. aeruginosasusceptibility to antibiotics in cystic fibrosis patients Yes / No4. P. aeruginosa is an opportunistic pathogen Yes / No5. P. aeruginosa is an opportunistic pathogen that causes about 51,000 infections in the USannually Yes / No
- 1(a)What is a psychrotroph? (b)From what natural sources would you isolate a thermophile? A psychrophile? (C)How does temperature affect the growth of a microorganism? (D)State the temperature class for Escherichia coli, Bacillus sp, Aeromonas sp, Micrococcus luteus, and suggest their optimum growth temperature. 2 (a)Why is dilution important when determining microbe number? (B)How does a decrease in dye colour intensity affect the microbe ? (C)State the possible sources of error if plate counts and colour intensity of dilutions are incorrect or Precautions taken to prevent this from happening. ( this is not a graded assignment)Out of the 5 possible oxygen requirements (Obligate aerobes, microaerophiles, etc), what specifically is E. coli, Pseudomonas aeruginosa, and Clostridium sporogenes?Microbial secondary metabolites are compounds produced by strains of certain microbial(antimicrobial agent).such as penicillin and cephalosporin. Describe the industrial fermentation process of each of these antibiotics. 1.name of the strain used as inoculum 2.type of fermentation process (batch, fed-batch, continuous) and bioreactor used. 3.media preparation (carbon source, nitrogen source, salts, oxygen requirements) 4.Temperature and pH maintained.
- 1.Differentiate between a microaerophile and an aerotolerant organism. 2.Why is resazurin a useful media additive for the study of anaerobes? 3.Why is a GasPak anaerobic jar necessary for the culture of anaerobes on plates of Brewer's anaerobic agar but not in tubes of fluid thioglycollate medium (FTM)? 4.Where in the human body would you expect to find an obligate aerobe? Where would you expect to find an obligate anaerobe?Microbial secondary metabolites are compounds produced by strains of certain microbial(antimicrobial agent).such as penicillin and cephalosporin. Describe the industrial fermentation process of each of these antibiotics. 1.media preparation (carbon source, nitrogen source, salts, oxygen requirements),Temperature and pH maintained.Answer the following questions briefly and concisely 1.How do bacteria in a chemostat and those in a batch culture vary from one another? 2. What happens in a chemostat if the dilution rate is higher than the organism's maximum specific growth rate? 3.Does a chemostat require the use of pure cultures? 4. Why would a complicated culture media for Leuconostoc mesenteroides be simpler to make than one with a fixed chemical composition?
- 1. Identify below the bacteria's shape and its gram reaction A. Staphylococcus aureus B. Escherichia coli C. Klebsiella pneumoniae D. Vibrio cholerae E. Streptococcus sp F. Spirillum sp G. Bacillus subtilis H. Neiserria gonorrhea I. Clostridium botulinum J. Pseudomonas aeruginosa K. Salmonella typhosa29. Identify a FALSE statement from the following, Group of answer choices bacterial growth is related to nutrient concentration and availability sulfur is essential in growth medium for some amino acid synthesis none of the above is an false statement nutrients uptake can be via active or passive process culture medium must be sterile before inoculation 30. Identify a CORRECT statement regarding penicillin allergy? Group of answer choices the hypersensitive reactions are mediated by IgE penicillin is degraded to penicilloyl and other breakdown products all of the statements are correct penicilloyl haptens trigger most allergic reactions anaphylactic shock is the immediate danger penicillin can provoke1) would you describe the contents of the soil-inoculated broth as being a “pure culture”? Why or why not? 2) How did the uninoculated broth differ in appearance from the broths inoculated with E. Coli and M. Luteus? And then how could you tell if a supposedly sterile, uninoculated broth was contaminated? Please explain in detail and highlight the important parts cuz I am confused and need help! Thanks