In experimental microbiology classification of bacteria is very important. Why is essential to classifying system for microbes ? How would you classify Escherichia coli?
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- Why is essential to classifying system for microbes ?
- How would you classify Escherichia coli?
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- A microbiologist is working with a pure strain of bacteria isolated from a mixed sample. Which of the following would indicate that the bacterium is NOT Helicobacter pylori? Cells have flagella when viewed by flagellar staining. Secretes acids produced from metabolism of sucrose. Cells are curved rods. Produces and secretes urease enzyme. Cells stain Gram negative.A microbiologist is working with a pure strain of bacteria isolated from a mixed sample. Which of the following would indicate that the bacterium is NOT Streptococcus mutans? Cells are arranged in chains. Secretes acids produced from metabolism of sucrose. Cells are cocci. Can grow in biofilms. Cells stain Gram negative.Why is it necessary to maintain aseptic conditions in microbiology?
- Is it acceptable to give a formal name to a microbe that hasn't been isolated and cultivated? What type of name should a microorganism have if it has been well identified but cannot yet be cultured in isolation?Most bacteria require a water activity of 0.9 or higher to grow. A prolonged period of being dry usually causes loss of viability. How were there still living bacteria in many of the dried foods such as dried rice, dehydrated coconut flakes, raisins, etc.? Discuss.Characterize the following bacteria: Gram reaction: Shape: Arrangement: Special structure/s if any: 1 common disease caused: Borellia burgdorferi Gram reaction: Shape: Arrangement: Special structure/s if any: 1 common disease caused: Spirillum volutans
- I completed the chart, and I'm supposed to figure out the unknown bacteria, there are 12 unknown culture, out of which of them resemble my chart the most? (My chart is the one in pink with the information filled out)How does the streak plate technique help in isolating individual colonies of bacteria? Why streak multiple times on one plate? 3. While observing a plate inoculated with bacteria you observe a white-tan fuzzy growth. What can you interpret from this observation? Explain how this outcome could’ve occurred. 4. What are 3 possible errors that could take place as you culture your samples which could lead to contamination? State 3 and explain why. Microbiology classLead is a very toxic metal that is not easily degraded in the environment. Lead pipes, paint containing lead, car batteries, and even lead fishing sinkers are all potential sources for the release of lead into the environment. what possible strategy can be done for identifying bacteria that may play a role in degrading lead?
- Describe the shape and color of the following species of bacteria after Acid-Fast staining: E. coli S. aureus M. luteus P. aeruginosa M. tuberculosissince gram-negative bacteria are generally more resistant to antibiotics such as penicillin, Gram staining can be used to inform appropriate antibiotic treatment for patients with bacterial infections. Based on the information in the key (Dichotomous key), infections caused by bacteria belonging to which genera would be the most effectively treated with penicillin?There are five major clades of bacteria. List three of them and provide their general characteristics and at least one example for each group.