Which of the following amino acid can be particularly detected with test using NaOH and lead acetate as reagents? a.tyrosine b.tryptophan c.cysteine d.valine
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Which of the following amino acid can be particularly detected with test using NaOH and lead acetate as reagents?
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- Provide examples of amino acids that would yield a positive Azo Dye test and amino acids that would yield a negative Azo Dye test. Show the structures.Explain main difference would you see when conducting the nitrous acid test with aniline vs. amino-cyclohexane? Be specific.Consider the following peptide sequence: His-Pro-Lys-Arg-Ala-Gln-Ser-Cys-Pro Which test will the peptide yield a negative result? O Ninhydrin Test O Millon's Test O Biuret Test O Sakaguchi Test
- Look for 5 color reaction/test that can be used to identify amino acids. Indicate also the color for positive results and what causes this results .Consider the following peptide sequence: His-Pro-Lys-Arg-Ala-Gln-Ser-Cys-Pro Which test will the peptide yield a negative result? Group of answer choices Millon's Test Sakaguchi Test Ninhydrin Test Biuret TestThis will determine whether the amino acid is the D or Lenantiomer Ninhydrin test Xanthoproteic test Solubility test Polarimeter test (polarized light) Except for proline and hydroxyproline, this test will give a purple color for all alpha amino acids Nihydrin test Xanthoproteic test Solubility test Polarimeter test (polarized light)
- Complete the table below regarding the different laboratory tests done for Amino Acids and Proteins Tests Procedure (Chemical Reagents Added) Positive Results/ Observations (ex: color of solution, precipitate formation, etc) Positive for (provide details like functional group responsible) Molisch Test Benedict’s Test Barfoed’s Test Moore’s Test Bial’s Test Seliwanoff’s Test Osazone Test Fehling’s Test Tollen’s Test Mucic Acid Test Lugol’s Test/ Iodine Test Hydrolysis w/ Benedict’s Test Hydrolysis w/ Iodine Test Provide the expected results with the samples given below: For negative results just leave it blank, for positive results write “(+) then the expected observation” ex: + blue solution Samples Molisch Test Benedict’s Test Barfoed’s Test Moore’s Test Bial’s Test Seliwanoff’s Test Glucose Galactose Fructose Ribose…Sample A may or may not contain amino acid/s. Based on the two tests performed, Sample D may or may not contain amino acid/s. Based on the two tests parformed, answer the Sample B may or may not contain amino acid/s. Based on the two tests performed, answer the atinne halnw answer the auestions below. auactinne helnw Xanthoproteic Pauly reaction Kanthoproteic Sample A Sample Sample D Mon's Milon's Xanihoproteic Identify the reactive functional group Interpret whether the result for each test is positive or negative for the presence of a certain amino acid. Interpret whether the result for each test is positive or negative for the presence of a certain amino acid. of the amino acid present responsible for the positive result/s. If there is NONE, choose "n/a" 1. Xanthoproteic test JA. Positive ,B Negative) 1. Xanthoproteic testJA. Positive , B Negative) 5. Xanthoproteic test 2. Millen's test (A Poaive B. Negetive) 2. Pauly ReactionA. Positive . 8. Nagative) 6. Millon'sst Identify the…Here are the test: Ninhydrin Test Xanthoptoteic Test Bluret Test Millon's Test Hopkins-Cole Test Nitroprusside Test
- An unknown solution contains a single pure sugar. It gives positive results to Molisch’s and Benedict’s tests but is negative for all others. What is the sugar? Is it sucrose, lactose, or xylose? Explain your choice.Is there a possibility for lactose to give a positive Mucic Acid test? Explain.Choose the correct description for the Biomolecule Test demonstrated in the figure. reagent త The polysaccharide starch is tested using Lugol's lodine The protein is tested using Biuret Reagent. The protein is tested using Lugol's lodine The polysaccharide starch is tested using Biuret Reagent O O O