Give the ideal observation for the positive results of the following samples to complete the table below. Write NO RXN if the sample gives negative result for the given tests BIURET XANTHOPROTEIC NINHYDRIN SULFUR SAMPLES TEST TEST TEST TEST Formation of violet- Cysteine NO RXN colored product Formation of red- Tryptophan NO RXN colored solution Formation of Formation of violet- colored product Keratin black precipitate B- Alanine NO RXN NO RXN
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- A. Explain why it is essential to digest all wild-type pQE. 1.-CRYGD. B. How would you make 50 mL o 1% weight per volume (w/v) agarose solution?Example of a Protein Purification Scheme: Purification of the Enzyme Xanthine Dehydrogenase from a Fungus Volume Total Total Specific Percent Fraction (mL) Protein (mg) Activity Activity Recovery 1. Crude extract 2. Salt precipitate 3. Ion-exchange chromatography |4. Molecular-sieve chromatography 5. Immunoaffinity chromatography 3,800 22,800 2,460 0.108 100 165 2,800 1,190 0.425 48 65 100 720 7.2 29 40 14.5 23 1.8 275 152.108 11 Calculate the specific activity of step#4. Note that percent recovery=% Yield.&. How many milldiners of a 2wv Lidocaine HCI stock selution in water should be used in preparing 30 ml of a 0.5% wiv Lidocaine HCI solution? . From the following formula for antificial tears, caleulate the quantity of each ingrodient roquired to prepare half donen of the 0ml containers. Poyviny alcohol 149 Povidone Chiorobutanol Serile sodum chioride soution a.%. s to 100 m How many milldiners of water should be added to 60 ml. of a 2% wiv agqueous solution to prepare a 1% wiv solution?
- REAGENTS. Match the name of the reagent with the physiological test. Tests may require more than one answer. a. alpha-naphthol b. dimethyl-alpha-naphthylamine c. ferric chloride d. Gram’s iodine e. hydrogen peroxide f. Kovac’s reagent g. methyl red h. N,N,N′,N′-tetramethyl-p-phenylenediamine dihydrochloride i. potassium hydroxide (KOH) j. sulfanilic acid 2,3-butanediol fermentation catalase test mixed-acid fermentation nitrate reduction oxidase test phenylalanine deamination starch hydrolysis tryptophan degradationTriple Sugar Iron slant for Staphylococcus Epidermidis , tell me the results I would get if I did this test?What is the clinical significance of ESR determination? Differentiate Wintrobe from Westergreen regarding accuracy of the test in a tabulated order. NOTE: Kindly asnwer all the questions. Thank you!
- Explain Emulsions. What variations are there? Give an illustration of each category. Create two emulsification programmes.Hydrolysis of polysaccharidesa. Add 20 drops of concentrated HCl to 30 mL of 3 % starch solution. Cover the beaker containing the mixture with a watch glass and boil gently. b. After one minute addition of acid solution, remove 2 drops of the solution and place on a spot plate. Test each spot with one drop of iodine solution. c. Perform the same test using Benedict’s solution instead of iodine solution. Hydrolysis of polysaccharides Results Starch Solution Iodine's Test Benedict's TestGive the color reactions. Test Tube 1. starch solution, pancreatin, and water 2. star solution, pancreatin, and sodium carbonate Lugol's Test Benedict's Test 3. starch solution Note: Test tubes are immersed in a water bath for 30 minutes in temperature 37 degrees celsius to 40 degrees celsius before performing the 2 tests. Question: What test tube will show positive starch hydrolysis and negative starch hydrolysis?
- Asap I need both answer. Please explain both why answer is correct. Advance thank youBiochemical tests for S.simulans : (+ or -) Catalase ___+___ DNase ___+___ Coagulase ___-___ 7.5% salt ___+__ Mannitol fermentation___-___ 2. Cell morphology and arrangement of S.simulans ____Explain the mechanism of molt inhibiting hormone (MIH) and provide the evidence or articles for your explanation (minimum 5). Don't copy and paste. Thanks in advance.