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What is the relationship between dilution factors and the efficacy of antimicrobial agents in inhibiting bacterial growth?
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- Why is the effectiveness of an antimicrobial agent determined using an exponentially growing bacterial culture? Please explain.What is the differece between disinfection and sterilization? What is the dfference between bacterial-cidal and -static antimicrobial agents?What are the tests to determine the level of antimicrobial activity of a antimicrobial agent? How dilution susceptibility and disk diffusion test can be used to determine the effectiveness of a drug?
- If a bacterial isolate shows intermediate to moderate resistance to an antimicrobial, how might this drug still be successfully used in the treatment of this microbe?How are dilution susceptibility tests and disc diffusion tests usedto determine microbial drug sensitivity?What are the characteristics of an ideal antimicrobial agent?
- Why are antimicrobials inhibited in the presence of organic matter?List two features limiting the adaptation of nonvascularplants.You have found that the D-value (decimal reduction value) of an antimicrobial agent to be 4 minutes when the agent was exposed to a bacterial culture having an initial total viable cel1 count of 10° CFU/mL. After 4 minutes upon addition of the antimicrobial agent, what would have been the total viable count of the culture in this experiment? A) O 10° CFU/mL B) O 10$ CFU/mL C) O 10° CFU/mL D) O 10' CFU/mL
- What is the main group of microorganisms producing the most antibiotics? Describe the biochemical characteristics of this microorganism and provide TWO (2) examples of antibiotics produced by these microbes.What are the potential consequences of long-term and widespread use of antimicrobial therapy on microbial populations and their evolution?Define the following terms; Sterilization, and Aseptic Technique. What are the differences between the two concepts?