1. For each of the following organisms, report its relative growth at the various pH levels. Organism Escherichia coli Staphylococcus epidermidis Saccharomyces cerevisiae Lactobacillus delbruckii subspecies bulgaricus pH 3.0 0 0 0 pH 5.0 ++ 0 10 pH 7.0 ++ + +++ pH 9.0 + 0
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- TSI Test plz answer all questions Why does TSI contain less glucose than sucrose or lactose? Does an acidic slant indicate that the microbe is a coliform? Explain your answer. What is the function of iron in this medium? Production of H2S by bacteria growing anaerobically in the intestines is common. Some H2S is absorbed into the circulation and some is expelled as intestinal gas. Less commonly, in certain individuals, H2S producing bacteria can live in the plaque built up around their teeth. What undesirable effect might that lead to? conclusionOrder: Mycostatin 150,000 U stat availablity : 100,000 Units prepare a dose: using the label attachedMicrobiology: Select which statements are true 1. if oxygen concentration in the lumen of the colon increases, this could decrease lumenal short chain fatty acid concentration 2. consuming diverse insoluble dietary fibers can promote increased digestive bacterial diversity, thus affecting the abundance and ratios of short chain fatty acids produced 3. fiber that is indigestible to humans is the most likely carbon source used for producing SCFAs 4. obligate anaerobes are more likely found in small intestine than in colon, because small intestine has higher levels of oxygen 5. less complex carbs (sucros, lactose, glucose,) are likely less abundant in the colon than in stomach or begging of small intestine.
- Hello! Can you please help me with the following: a. Draw the basic batch growth curve and label the four difference phases of growth and kinetics on the curve.b. Give a description of each phase on the curvec. Compare (less than, greater than, equal to, equal to zero) growth rate (Rg) and death rate (Rd) at each phase.d. What is the deceleration phase? Where is this phase on the curve (circle the location)?e. What does it mean that the exponential growth phase is 1st order? Please give the equation that represents the order of the exponential growth phase. Thank you!1. Describe the possible colour reactions one can observe with triple sugar iron (TSI) slant and the biochemistry it represents. 2. Briefly explain the term cardinal temperatures and apply it to the terms psychrotrophic and mesophilic microorganism.S. Epidermidis E. Coli E. aerogenes P. búlgaros B. subtilis Record results of each organism for the following Glucose (growth, acid, gas) Lactose (growth, acid) Sucrose (growth, acid) Mannitol ( growth, acid) Explain the results
- PLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…PLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…Need help with the following questions for microbiology 1. Which of the following total magnification (on a compound light microscope) must be used to identify bacterial morphology A. 100 x B. 400 x C. 300 x D. 1000 x 2. You learned about the Bio Safety Level (BSL) categories in Microbiology Lab, which of the following BSL category is safe to processed in a lab on open counter top? A. BSL3 B. BSL2 C. BSL1 D. BSL4 E. BSL1 and BSL2 3. Streak Plate method is used for A. all choices are correct B. used to isolate bacteria from a mixed culture/sample C. is used routinely in Microbiological labs D. is essential tool for isolation and identification of any specific bacteria 4. A selective laboratory growth medium for Gram negative bacteria will allow -------. A. only algae to grow B. only viruses to grow C. only G+ to grow D. only G- to grow 5. You learned that microbes are ubiquitous and they are part of normal flora of various body sites, however which body sites is/are supposed to be…
- Could you explain the difference ( and possibly show the difference) between a growth on Agar slants and Growth in broths? Next, could you describe what E. Coli, M. Luteus, and an uninoculated growth should look like on both agar slants and broths? Much thanks! I am a bit confusedA microbiologist has isolated a new strain of bacteria, and is trying to characterize aspects of its growth. Three flasks of the same media have different amounts of NaCl added. Other growth conditions are identical, and the flasks inoculated at the same time. At regular intervals over a 3 hour period, culture samples are taken and turbidity is measured. Here are the absorbance values over time in a table and graphed. Absorbance (OD600) Time (min) 20% NaCl 3% NaCl 0% NaCl 0 0.05 0.05 0.05 30 0.06 0.05 0.05 60 0.075 0.06 0.05 90 0.11 0.07 0.049 120 0.25 0.1 0.048 150 0.5 0.105 0.055 180 0.7 0.11 0.055 210 0.99 0.15 0.06 240 1.22 0.18 0.055 270 1.35 0.19 0.06 300 1.5 0.2 0.06 330 1.6 0.25 0.062 360 1.7 0.3 0.06 Based on these data, which of the following can be determined about this bacterium? It is psychrophilic. It…SIM media Give me the expected results (3 each) for Enterobacter aerogenes, Salmonella typhimurium, and Escherichia coli. Enterobacter aerogenes- Salmonella typhimurium- Escherichia coli-