In a(n) _________ test, the effectiveness of a microbial control agent is compared to that of carbolic acid. Question options: use-dilution in-use Kelsey-Sykes capacity phenol coefficient Entner-Doudoroff algebra
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In a(n) _________ test, the effectiveness of a microbial control agent is compared to that of carbolic acid.
Question options:
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use-dilution |
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in-use |
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Kelsey-Sykes capacity |
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phenol coefficient |
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Entner-Doudoroff |
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algebra |
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- make the test principle, materials required for the analysis, sample preparation, test procedure, indication of a positive result, complications/interferences, for nitrous acid test.In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials can be sterilized using either or both equipment below? List them down under the category: a) For “autoclaving” only, B) For Dry heat oven sterilization ,And C) Can be sterilized with either. Materials: 200-ml Erlenmeyer flask Stove 500-ml Erlenmeyer flask Autoclave 10-mL graduated cylinder Analytical balance 100-ml graduated cylinder pH meter Spatula Stirring rod 100-mL beaker Test tubes Distilled water Petri dish Stirring rod Alcohol lamp Glass dropperA sample is diluted by a factor of 10 five times. The 10^-3 dilution has 272 colonies on it. Assuming you plated the same volume on each plate, how many colonies would you expect to find on the 10^-4 plate? Include units and use OCD formula.
- One of the following is NOT one of the goals of sterility testing To assure safety of products To monitor the quality of certain pharmaceutical products before marketing To confirm that certain sterile products are free of all microbial forms To count no. of CFU/ml in a pharmaceutical sampleWhat is the difference between cost per billable test and cost per reportable result. (Give examples referring from the laboratory environment)How are clinical chemistry test results used to confirm or rule out a presumptive diagnosis? Why is this important and give references.
- Thermotolerant coliforms are often referred to as "faecal coliforms", although the organisms may not be of faecal origin. The time interval between collection of the sample and testing shoud not exceed 6 hours, why is this?Identification of an organism does not require a pure culture because Bergey’s Manual will sort out the contaminant. Identification of an organism does not require a pure culture because Bergey’s Manual will sort out the contaminant. True FalseWhat is moisture content of test results.
- list the reagents used in the IMViC tests and what they detectThe table below summarizes the results for Lead-sulfide test. Provide the correct remarks from the results if Negative for Lead-sulfide test or Positive for the Lead sulfide test and it's either Negative for -SH or Positive for -SH‘Practical techniques used to identify unknown microorganisms’ You should include the types of tests you would use and how to interpret the results. You do not have to include a step-by-step guide to each of the practical techniques, but rather information could include background, reasoning and/or expected results.