ect in ePortfolio idol™M → Caffeine Acetaminophen Solvent front Download 14. A student conducted an experiment using the silica gel TLC plate shown below by spotting a sample of MidolTM, caffeine, and acetaminophen on the plate and eluting with petroleum ether: chloroform (9:1, v/v). Separation of Amino Acids by Thin Layer Chromatography Q Print A Alternative formats A B
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Separation of Amino Acids by Thin Layer Chromatography Lab Questions. Thank you for your help!
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- Utilising the provided class data generate the following graphs: I) Michaelis Menten; II) Lineweaver-Burk; and III) Hanes-Woolf. Ensure that you clearly label each graph,and add the relevant trendlines with equations. Table 1: Class data demonstrating the Absorbance at 700nm obtained for the alkaline phosphatase enzyme reaction Table 1 tube Abs700mm 1 0.000 2 0.060 2 0.090 4 0.140 5 0.190 6 0.250 7 0.290 The equipment we used are • 20mM Tris Buffer pH 8.5 • 33mM MgCl2 • Alkaline Phosphatase (2mg/ml) in 20mM Tris Buffer pH 8.5 • 4mM Glucose-1-phosphate • Acid Molybdate pH 5.0 • Reducing Agent • Distilled Water • Glass Test tubes • Tube Rack • Cuvette • Pipettes and Tips • Water bath set to 37oC The method we used is Method/Protocol: 1. Read the protocol in its entirety before starting. Take note of any additional information that appears in subsequent steps that may influence how previous steps are performed. 2. Using glass tubes, generate the reactions mixtures…When comparing the biuret reaction to measuring protein absorbance directly at 280 nm, list two benefits of utilizing the biuret reaction to quantify protein concentration.Rx Of oxacinophtalmic solution 3% Disp. 10 mL How many milligrams of axacin contained in each milliter of the dispensed prescription?
- 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: _____Chitinase is a protein that breaks down chitin, a primary component of the cell wall in fungi, scales in fish and exoskeletons of arthropods. The activity of chitinase extracted from a plant was shown to be optimum at pH 5. You were tasked to prepare 300 mL of 150 mM buffer solution for further analysis of the extracted chitinase. REAGENTS Ka 2.5M Acetic acid Solid NaOAc•3H2O [136.08g/mol] 1.76 x 10-5 2.5M NH3 Solid NH4Cl [53.49g/mol] 5.6 x 10-10 2.5M Lactic acid Solid sodium lactate [112.06g/mol] 4.0 x 10-5 5 M HCl 5M NaOH Pls show sol'ns 1. Given the following reagents, give the moles of each component (acid & base).2. What are the mass/volume of the components needed to prepare the buffer? 3. What will the pH of the buffer be if 1mL of 5 M NaOH was added?Give two benefits of utilizing the biuret reaction to assess protein concentration over directly measuring protein absorbance at 280 nm.
- pls explainWhy was absorbance measured at 420 nm in the enzyme kinetics experiment? To monitor thea. decrease in catechol concentrationb. increase in quinone concentrationc. decrease in polyphenol oxidase concentrationd. polyphenol oxidase-catechol complex concentrationLineweaver-Burk plot is the most used linearization method of the MichaelisMenten equation, but the main drawback is a/an:a. overemphasis to low substrate concentration and less emphasis to high substrate concentration.b. overemphasis to high substrate concentration and less emphasis to low substrate concentration.c. exaggeration to both ends of the reciprocal of the substrate concentration.d. lack of independent variables to x- and y- coordinatesGive two advantages and two disadvantages to using the biuret reaction to measure protein concentration compared to measuring the protein absorbance directly at 280 nmWrite the biochemical structures of bicarbonate buffer Phosphate buffer and protein buffer. Biochemical structures please.
- Describe the effects of a lethal dose of ionizingradiation at the molecular level. What type of filterwould be used to filter sterilize a heat-sensitive liquid?Draw dipeptide Arg-Thr at pH 6.0. Circle the six atoms that are restricted in one plane. Calculate its approximate pI assuming pKa for NH3+ is 10.0, pKa for COOH is 3.0, PKR for Arg is 12.0Substrate Concentration (mol L1) Velocity (mM min-1) 2.500 0.588 1.000 0.500 0.714 0.417 0.526 0.370 0.250 0.256 Determine the values of Km and Vmax for the decarboxylation of a 훃-keto acid given the followingdata. You have to plot the graph by using excel and please include the scope of graph