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RODAC plates are used for
Water sampling
Air sampling
Sterility testing
Surface sampling
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- Which spectrophotometer mode should you use to calibrate the instrument and which mode should you use to read your samples? Transmittance for both Absorbance for both Absorbance to calibrate and transmittance to read samples Transmittance to calibrate and absorbance to read samples Flip a coin to pick a mode each time.Assume your field of view under a 3X objective is 6mm across. What is the field of view in mm under a 20X objective? Show clear work with units for credit. Field of view 20X objective? ___mm What is the field of view of this 20X objective in micrometers? If you observe a specimen under the 20X objective and the specimen spans one-quarter of the field of view distance, how long is the specimen in micrometers?Please make an aseptic technique and pure culture technique flowchart
- What is the purpose of examining your specimen slide using low power objective first nefore high power objective?how often do we have to clean and caliberate a spirometer based on national and international guidelinesoption isoelectric focusinggel filtrationsalting outdifferential centrifugationEdman degradationion exchangedialysis
- Which of the following is/are source/s of error in performing a spectrophotometric method? Answer all that apply. Sample is turbid when the absorbance is read. The absorbances were read at maximum absorption. Standard solutions are prepared accurately. The cuvettes have fingerprints.In outline form discuss the steps of Ziehl-Neelsen staining Complete the table for National Reporting Scale (Description) National Reporting Scale Result Description 0 +n 1+ 2+ 3+The first step in identifying an organism from a pure working culture is to perform a(n) __________ test. acid-fast staining negative staining endospore staining simple staining Gram stain
- If a spectrophotometer is available, dispense the culture into labeled corvette and determine the optical density of each cultureIdentification 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 False-true or false. the distance the objective lens is from the specimen when the specimen is in focus is called working distance. -in the DNA extraction from fruit laboratory, by what process did cell lysis occur decanting filtering blending mashing measuring
