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- It took 25 minutes to kill all the bacteria in a test tube at a temperature of 135 degrees Celsius. This is also called the Temperature point O Thermal death time. Thermal death pointSuppose you spilled two cultures of Salmonella typhimur-ium (each containing 100,000 cells) on your lab bench. You im-mediately applied the same disinfectant to both cultures at thesame time. One culture had been freshly grown for 36 hours andthe other culture is 2 weeks old. If the kill ing rate of the disin-fectant is 90% per minute, do you think that microbes in bothcultures will be completely killed after 6 minutes? Why or whynot?schema __ illustrates simple segragation. shema__illustrates how interpersion is violated during oven incubations schema___has randomization but poor interspersion
- Consider access of a digital extbook on the same computer being used for the exam as "leaving". If you are sing textbook notes/materials during a exam, they must be on non-electronic or n a separate device. ou will only have 1 attempt at this exam. D Question 20 Which of the following best represents a chemical mediator that inhibits pathogen invasion? O keratin cilia O sebum O serum O antibacterial soap O resident microbiota F O 2.5 pts hp Rain...Each hour following the initial dose, aoenicillin to treat this infection Part B The Cure A doctor prescribes 5o0 milligrams of the body fram +he ndin of the concentntion r Date Period: Name Interim #3 Baffling Bacterla Part A The Infection We have studied bacteria and know that they reproduce by fission or simple cell division Streptococcus bacteria cause the well-known illness, strep throat, The bacteria can reproduce every twenty minutes If you Inhale a strep bacteria at noon today. a) How many will have been produced by the time you go home at 3:30 this afternoon? Explain your thinking. Prediction: b) Draw a picture of what is happening in the first 60 minutes.A patient comes to your office complaining of a productive cough, night sweats, and unexplained weight loss. You perform a Kinyoun acid-fast stain of his sputum and see the acid fast positive organisms depicted in the picture What is the organism most likely causing the disease? C Staphylococcus aureus Mycobacterium tuberculosis O Mycobacterium leprae Mycobacterium fortuitum
- A broth tube is inoculated at 9 AM. At 12 PM there are 6,400 cells. At 2 PM there are 400,000 cells. How many cells were put in the tube?of 1 stion s page 30- F2 Which of the following terms is associated with the probability of a preparation not being sterile after it has been exposed to a sterilization process? Select one: Oa. Particulate Matter level Qb. Sterility Assurance level О с. Pyrogen Load level O d. Optimal Sterilization level F3 F4 F5 Ol پیار Q Search F6 F7 F8 F9 === 8 9 F10 Time left 22:34:03 F11 Next pageD Question 37 Based on the data below, how much more UV resistant was B. licheniformis relative to S. aureus? (All controls had growth.) - covered with lid Organisms Exposure 20 sec Staphylococcus aureus 5 sec + 20 sec Bacillus licheniformis + 10 sec 80 sec times to UV light 40 sec 2.5 min 160sec 5 min 10 min 5 min 20 min 10 min 40 min 10 min + 40 min
- which bacteria is Pleomorphicrod or clubshaped,gram positive, motile and passes the oxidase test? which bacteria is Coccobacillary,gram negative, non motile and negative oxidase test? which bacteria is Rods withparallel sidesand roundedends, gram negative, non motile and negative oxidase test? which bacteria is Coccoid assingles or inpairs, gram positive, non motile and negative oxidase test?An outbreak of Methicillin-resistant Staphylococcus aureus (MRSA) in the surgical ward at the hospital forces the hospital administrator to cancel and postpone all non-essential surgeries until the source of infection has been located and for measure put into place. Bacterial samples obtained from swab of wad staff equipment and surfaces arr brought to the lab for analysis. 1. What testing method will you employ to determine the level of exposure? 2 How would a positive test present? 3. How would a negative test present? 4. What recommendations would you make in your report?This is how a hanging-drop slide is prepared. Figure from Macedo, Wikimedia Commons, 2016. 2 3 4 slide cover slip vaseline concavity drop of microbiological culture CA inoculation loop 11. Which slide gives you more information, the hanging drop or the stained slide? Why do you say so? 12. Why might it be valuable to know whether a bacterium is motile?