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List down two important precautions in conducting brine solution experiment.
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- Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration. show solutionDesign a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration.From a water sample, you must determine the number of colonies present (CFU's/ml.). However, looking at the plates of the dilutions you find some cultures with scattered colonies. Briefly explain the reason for eliminating or not considering these plates in the data collection. Short answer please..
- explain why it is important to maintain sterility when inserting a foley cathetherWhat are the advantages and disadvantages of the filter method in the analysis of water samples? Why is the incubation temperature critical for this test?What are the expected problems in the centrifuge in case of imbalance of samples ? *
- The following image is a scheme for serial dilutions prepared for spectrophotometric analysis. If the stock solution concentration is 0.05 % (v/v) can you calculate the other tube’s concentrations in % v/v? I've used this with direct dilutions, how would I use this on serial dilutions?Describe three problems associated with using the standard plate count method for determining the number of bacteria in a sample.Describe two methods of water analysis.
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