How are methods of precipitating proteins, such as heat and treatment with alcohol, also successful in killing harmful microorganisms?
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How are methods of precipitating proteins, such as heat and treatment with alcohol, also successful in killing harmful microorganisms?
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- Aseptic technique refers to A) the microbial inoculum placed into a test tube or onto a Petri plate. B) a series of practices to avoid contamination. C) the autoclave and other sterilizing procedures. D) cleanliness in the laboratory.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.-For each item listed below, select a sterilant that you feel is the most suitable and effective for that item. Discuss why you selected each sterilant.? A) plastic Petri dishes to be used for nutrient media B) glass tubes of bacterial cultures to be discarded C) sterile milk D) dozens of reusable glass pipets E) bone tissue for grafting F) room air G) hospital mattresses H) biopsy tissue for histology analysis I) plastic respiratory therapy equipment and arthroscopes J) vaccines
- The disc diffusion assay measuring a disinfectant's effectiveness against a microorganism is more standardized than measuring an antibiotic's effectiveness with the kirby-Bauer assay. a) True b) FalseGiven that both human cells and pathogens synthesize proteins at ribosomal sites, how can antimicrobial agents that target this process be safe to use in humans?Why are antimicrobials only directly effective against bacteria and what is the control on the antimicrobial plate?
- What is the connection between certain antimicrobial drugs and superinfections?Caffeine is used in bilirubin assays to: 1) Stop the diazo reaction 2) Accelerate indirect bilirubin reaction 3) Accelerate direct bilirubin reaction 4) Precipitate proteins 5) Reduce sodium nitrite no references, just homeworkAfter a series of experiments, bacterial cultures were identified for disposal. How can these be properly decontaminated prior to disposal according to biosafety guidelines? METHOD:RATIONALE: