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3) In some experiments, Serratia and the Bacillus are exposed to UV radiation for different duration
to achieve sterilization. Why?
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Solved in 2 steps
- 1- what is the result of B. cerus in the endospore stain? 2- what is the results of B. subtilis in the endospore stain?1. While working with Mannitol Salt Agar you notice the growth of staphylococci however other microorganisms are growing as well. How would you interpret this?1. What kinds of media would be used to culture and Identify this microbe?2. What are some other potential microbes that could have this infection?
- uv radiation: what physical property of bacillus contributes most to its resistance? name at least two cellular mechanisms that contribute to repair in the dark? what happens if a microbiologist forgot to half way cover a plate with a card, would more growth or less growth be observed?9. The process in which all organisms and pathogens are destroyed is called ------. a) Disinfection b) Sterilization c) Antisepsis d) Pasteurization1-what is the result of S. volutans in the flagella stain? 2- what is the result of P. vulgaris in the flagella stain?
- 1) 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! Thanks1. Why do you disinfect your work area at the beginning of lab and then again at the end of lab? 2. If you have used proper aseptic technique to inoculate a new test tube of nutrient broth from apure culture of Bacillussubtilis, how many types of bacteria do you expect to grow in the new broth?And why?1. What scientific terms describe the cellular morphology and arrangement ofStaphylococcus epidermidis? 2. What scientific term describes the cellular morphology of Bacillus subtilis? 3. What scientific term describes the cellular morphology of Escherichia coli if they appearas rod-shaped cells? 4. What is the purpose of heat fixing the smear prior to direct staining? 5. What would happen if you heat fixed a smear before it air-dried? What would youexpect to see when viewing the slide using the microscope? 6. What would happen if you didn’t heat-fix a smear before performing the direct stain? What would you expect to see when viewing the slide using the microscope?
- 1. The selective ingredient in mannitol salt agar is ______________, which selects for the growth of Staphylococcus organisms.1) In capsule staining, why does the capsules did NOT take in any dye? 2) In endospore staining, what is the purpose of using the steam?1. Explain in detail, how did Candida famata contaminate or spoiled the snail meat?