What is the purpose of the sodium thiosulphate in the testing of treated water?
Q: What is the result for the yellow tube of Methyl red test? What must the pH be in each tube? What is…
A: Methyl red test This test usually aims to differentiate the facultative anaerobes enteric bacteria.…
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A: Voges-proskauer test is performed to differentiate between facultative anaerobic enteric bacteria.
Q: where will you dispose of the waste from Molisch test?
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Q: Why is the annealing temperature different between samples? How is this computed?
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Q: What are the advantages of the API 20E test compared to regular biochemical tube media
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Q: What is the media used in Catalase test and its expected results?
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Q: What is the chemical basis of Molisch test?
A: Molisch test is a colorimetric method that is used to detect the presence of carbohydrates in a test…
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A: Disinfectants are chemical agents that are built on inert surfaces to inactivate or kill…
Q: In urea hydrolysis what emd product is specifically being tested for in this test? Is the final ph…
A: The general formula or urea is NH2CONH2. Urea breakdown requires the enzyme urease. It is primarily…
Q: What are the advantages and disadvantages of the filter method in the analysis of water samples?
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Q: what are the principle chemical reaction involved in each test?
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Q: what is the effect and rationale when three milliliters instead of 1 mL was placed in the Petri dish…
A: Pour-plate method is usually the method of choice for counting the number of colony-forming bacteria…
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Q: Sodium iodide. Dosage form, qualitative and quantitative analysis?
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A: MPN is Most probable number. It is commonly applied for testing the quality of water.
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Q: Why did the blank used in experimental procedures contain substrate, buffer and water?
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Q: What is the concentration of a 50% solution after completing three 1:10 serial dilutions?
A: Serial dilution is the process that reduces the concentration of a solution in an organised manner.…
Q: A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could…
A: Carbohydrates are the chief biomolecules which act as energy source. Most of the body cells depend…
Q: How would you make two-fold serial dilutions such that the last tube is a 1:32 dilution of the…
A: Serial dilution is used mostly in studies involving cell cultures (microbiology or even cell culture…
Q: can the phenol red test also be used to determine if a certain bacterium can metabolze various…
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Q: mportance of pH adjustment in culture media?
A: Culture media is also known as growth media. It is a mixture of nutrients that helps for the growth…
Q: Can galactric acid test/mucic acid test be used to determine the presence of milk in milk-chocolate…
A: A nutrient-rich white fluid secreted by the mammary glands of the mammals is referred to as milk.…
Q: What is the main purpose of Huble's Test? How does it differ/similar to Unsaturation Test? How do…
A: Lipids are a group of compounds that are oily or greasy in nature. They consist of alcohol generally…
Q: cal is utilized as the reagent known as VP-B?
A: The Voges-Proskauer (VP) test is generally used to test if an organism produces acetyl methyl…
Q: WHAT IS THE IMPORTANCE/BENEFITS OF BENEDICT'S TEST IN TEST FOR REDUCING SUGAR?
A: BENEDICT'S TEST is a test used to identify the sugars (usually monosaccharides and some…
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A: Answer :
Q: what are the Amino Acids that test positive for Ninhydrin test? what is the principle of detection?
A: All the alpha amino acids test positive for ninhydrin test.
Q: What is diluent? Why is it useful for working with bacterial samples?
A: Dilution is done to decrease the concentration of the original sample that is being tested. Dilution…
Q: The original concentration in a sample of kombucha is 2.79 x 10^6 CFU/ml. Which dilution would yield…
A: Formula, Original cell count = #colonies / (volume plated × dilution) Viable plate count = 30 - 300
Q: After a urine culture, 95 colonies are counted on a plate inoculated with 1 uL of urine samplpe.…
A: The CFU count gives us the viable number of cells present in the sample.
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A: Only 70% alcohol is effective as a disinfectant that is killing the microorganism on the surfaces.…
- What is the purpose of the sodium thiosulphate in the testing of treated water?
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- What does translucent spot mean with regards to lipid? Identify the control for this test. 1. Oil 2. Cheese 3. Water 4. CheeseNinhydrin test for amino acids or protein requires that sample test solution should be at initially basic pH. True or False?What is the result for the yellow tube of Methyl red test? What must the pH be in each tube? What is the reagent used in this test? What media is used? Describe the biochemical abilities of these organisms .
- what is the effect and rationale when three milliliters instead of 1 mL was placed in the Petri dish in pour-plate method?The original concentration in a sample of kombucha is 2.79 x 10^6 CFU/ml. Which dilution would yield a countable plate? How would you make this? Show your calculations. Confused as to what's implied by "which dilution"? does it mean, how many times?Give the principle involved in the ninhydrin test. What is its purpose?
- A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could possibly be?What is the phenol red test? Please explain the testing and its results and the chemistry behind it? Please explain for a beginners level. Thank youCan galactric acid test/mucic acid test be used to determine the presence of milk in milk-chocolate bar? How? What is the reaction involved in this test?