Ideal solvents for fat extraction should: a- penetrate sample particles readily, be in single component form to achieve fractionation b- penetrate sample particles readily, be in single component form to avoid fractionation c- be hygroscopic d- be non-hygroscopic e- a+ c f- b+ d O g a+d h-b + c
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- Please describe in detail what would be a suitable procedure should you break anErlenmeyer flask containing 50 mL of a biosafety level 2 microorganism inside amicrobiological safety cabinet.What is true about 'cracking' of emulsion? Select one: O a. The primary emulsion does not become white due to coalescence of the dispersed phase O b. The globules of dispersed phase rise to the surface O c. Cracking is reversible and redispersion can be achieved by shaking O d. It is a result of phase inversion due to prolong storagehttps://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Molish test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question, the video is very brief) (please take time to answer)
- An IV bag contains 250 mL of a 5% mannitol solution. How many grams of mannitol are in the IV bag?McConkey Agar has been requested by a hospital that is investigating cases of suspected Salmonella food poisoning. The formula on the bottle of powdered media is 50 g / 1000 mL deionized water. How many grams of media would be required to prepare 90 plates assuming 20 mL per plate? O 150 O 75 90 O 180With the aid of diagrams, explain the processes and principles of each of the following methods: (a) Gel filtration chromatography on Sephadex G50 b.SDS-PAGE
- Given the following situation, choose the best course of action: measuring 100 µg of lyophilized albumin protein use micro balance O use top loading balance use analytical balance use triple beam balanceAll recipes are given per litre unless specified. Lambda Broth (LB) Plates Top Agar 10 g tryptone 10 g Tryptone 2.5 g NaCl 2.5 g NaCl 15 g Agar 7 g Agar Make 5 mL aliquots, then autoclave. Lambda Broth (LB) Media Suspension Media 10 g tryptone 5.0 g NaCl 2.5 g NaCl 2 g MgSO4· 7H2O 50 ml 1 M Tris pH 7.5 In LB medium…Now prepare a 500 ml media having ¼ strength MS with 5mM BAP, 5.5 mg/l Kn and coconut water 10%. Stocks are MS Macro 10X, micro 20X, FeEDTA 10X, Organic 100X, BAP and Kn 5gm/100ml. If you need anything else then you add accordingly. BAP has a MW of 225.3. Sucrose and Myo-inositol is not mentioned in the question. These you need to add. Consistency of the medium is also mentioned.
- All recipes are given per litre unless specified. Lambda Broth (LB) Plates Top Agar 10 g tryptone 10 g Tryptone 2.5 g NaCl 2.5 g NaCl 15 g Agar 7 g Agar Make 5 mL aliquots, then autoclave. Lambda Broth (LB) Media Suspension Media 10 g tryptone 5.0 g NaCl 2.5 g NaCl 2 g MgSO4· 7H2O 50 ml 1 M Tris pH 7.5 In LB medium…Why it is possible/ applicable to use recrystallization and vacuum filtration with Luminol? Cite some reasons.(Explain in at least 1 paragraph)please Indicate the tests to quantify certain parameter as indicator of quality in Squash Soup. (for example: The parameters that are being described in here are the proximate (i.e., moisture, ash, carbohydrate, protein, and fat) and physicochemical analyses (pH, specific gravity, density, etc.) that can be helpful in identifying the quality of the food. For example, to measure the moisture content of the sample, you may use gravimetric analysis or the oven dry method. Another is the pH, wherein you can use a pH meter to determine if the sample is acidic or basic.)