Match inhibitors, selective ingredients, pH indicators and other components to correct medium phenol red pH indicator [ Choose ] [Choose] mannitol Mac Sabouraud Agar 7.5 g NaCI/100 ml inhibitor Blood agar MSA low pH, high dextrose concentration [ Choose ] inhibitors neutral red pH indicator [ Choose ] crystal violet and bile salt inhibitors [ Choose ] no inhibitors [ Choose ] lactose as only sugar in medium [Choose]
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- Match the chemical reaction to the visual effect of the product/biochemical test description 1. This assay's color change relies on an initial reduction reaction resulting in a black precipitate if the organisms is "positive" 2. The visual production of gas from this reaction indicates this organism can break down toxic byproducts of aerobic respiration. 3. This assay relies on a pH indicator (phenol red) for a color change. An organism that was "positive" for the certain enzyme in this assay, would result in a pink color change. 4. If an organism was incubated in simple broth containing a phenol red pH indicator and a sugar source, and the broth turned yellow following bacterial growth, that would be evidence of this reaction occurring. 5. The reaction representing this assay, works by producing a red colored product upon addition of a reagent, which tells us the organism possesses the enzyme required to break down a particular amino acid.Sucrose + H2O(negative control): Colorless to brown solution: Blue solution Conclusion for Iodine test A. amylose present B. amylose not present Conclusion for Benedict's test A. reducing sugars not present B. reducing sugars present Sucrose + HCl(potential hydrolysis): unchanged compared to sucrose+water: Conclusion for Iodine test A. more amylose present B. LESS amylose present C. NO change Conclusion for Benedict's test a. more reducing sugar present b. less reducing sugar present c. no change Did hydrolysis of sucrose occur in the presence of acid? A. Yes B. noin food microbiology, how do you compute for concentration (M) and absorbance (A) of peroxidase activity on hydrogen peroxide at different pH values? (wavelength used = 415nm). can you please explain the calculations thank you if given: Temperature = 75 C Molar absorptivity coefficient = 10.5 Path length (cm) = 2 I = transmitted light = 0.45
- Prepare a complete analysis procedure using KMnO4 as teh oxidant instead of K2CrO7 in the redox analysis of iron. Include sample and solution preparation, approximate weights of samples and reagents, procedure and chemical reactions. In particular, what is the purpose of the Zimmermann-Reinhardt reagent?Biochemical Tests Principles Culture Media pH Indicators Metabolic End Products Positive Results Carbohydrate Fermentation Test Indole Test Methyl-Red Test Voges-Proskauer Test Citrate Utilization Test Catalase Test Oxidase Test Coagulase Test Urease Test Hydrogen Sulfide Test Construct a matrix of the various Biochemical Tests by completing this table:A mixture containing glutamic acid, arginine, phenylalanine and valine was subjected to anion exchange chromatography at pH 7.0. Which of the amino acids interacted with the resin (anion exchanger) and last to be eluted with a buffer of decreasing pH? A. Glu B. Val C. Phe D. Arg
- Amoxicillin/clavulanate potassium (AUGMENTIN) powder for oral suspension is prepared prior to dispensing by adding 134 mL of purified water to the contents of the container to prepare 150 mL of suspension. If each teaspoonful of suspension contains 125 mg of amoxicillin and 31.25 mg of clavulanate potassium, how much of each of these agents is contained in the dry powder prior to reconstitution33. Which of the following is an emulsifying agent? a. bile salt b. NarCOs c. both a and b d. neither a nor b 34. What reaction occurs during saponification of triacylglycerol? a. hydrolysis b. condensation c. both a and b d. neither a nor b 36. What was added to the sample prior to heating in acrolein test? a. KHSO4 b. ethanol c. both a and b d. neither a nor b 37. Which of the following is a general test for lipids? a. solubility test b. Huble's test c. both a and b d. neither a nor b 38. Which test can distinguish between sesame oil and corn oil? a. Burchard test b. Baudouin test c. Sudan IV test d. Dichromate test 39. What solvent would be miscible with coconut oil? a. chloroform b. water c. both a and b d. neither a nor b 40. Which of the following is a product of saponification of fatty acids? a. glycerol b. NaOH c. both a and b d. neither a nor bA member of the staff at the care home inquires about paracetamol with the pharmacist. This employee requested to purchase 4 boxes of paracetamol (each having 16 pills), but the grocer refused. What is the reason behind this? Please provide a biochemical explanation. please make the answer long
- Date Sheet Extraction ODD EVEN ODD EVEN GROUP Single Extraction 1 Single Extraction 2 Multiple Extraction 1 Multiple Extraction 2 Weight of tea leaves 10.002 (g) 10.123 (g) 10.013 (g) 10.007 (g) Weight of evaporating dish + caffeine 123.689 (g) 124.334 (g) 121.815 (g) 126.523 (g) Weight of empty evaporating dish 123.513 (g) 124.147 (g) 121.614 (g) 126.246 (g) Weight of caffeine Post Lab Questions Explain the principles involved in extraction. What other organic compounds can be extracted from tea bags? Draw their structures and briefly mention their biological function/s. Why do you need to add sodium carbonate in the extraction process?Using DEAE-cellulose as ion exchange resin, indicate the starting and ending pH for the narrowest experimental pH range used to separate an amino acid mixture consisting of Gln, Leu and Lys Starting pH: _____ Ending pH: _____Triple Sugar Iron slant for Staphylococcus Epidermidis , tell me the results I would get if I did this test?