The presence of certain amino acids in urine can be indicative of medical problems. To determine...
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The presence of certain amino acids in urine can be indicative of medical problems. To determine whether a patient's urine contained these amino acids, a laboratory scientist ran two TLC plates, one with standards, and another with urine samples from three patients. The plates were developed with a reagent that makes a colored compound in the presence of amino acids. a) This laboratory scientist forgot to label her standards. Given this TLC plate, determine which lane was for the cysteine standard and which the phenylalanine standard. Cystine Phenylalanine HO NH₂ S-S NH₂ OH O NH₂ OH TLC plate 0 0 b) Given the TLC plate above, and the one with urine samples below, determine which patients, if any, have an excess of cysteine (indicative of Cystinuria) and which, if any, have an excess of phenylalanine (indicative of PKU, Phenylketonuria). O 10 0 0 10 c) On a separate sheet of paper (either typed or written clearly), write a persuasive Results and Discussion section presenting the results and identifying the amino acids present in the patients' urine. Provide your data/evidence and logic clearly and thoroughly so that another scientist would be convinced of your conclusion. The presence of certain amino acids in urine can be indicative of medical problems. To determine whether a patient's urine contained these amino acids, a laboratory scientist ran two TLC plates, one with standards, and another with urine samples from three patients. The plates were developed with a reagent that makes a colored compound in the presence of amino acids. a) This laboratory scientist forgot to label her standards. Given this TLC plate, determine which lane was for the cysteine standard and which the phenylalanine standard. Cystine Phenylalanine HO NH₂ S-S NH₂ OH O NH₂ OH TLC plate 0 0 b) Given the TLC plate above, and the one with urine samples below, determine which patients, if any, have an excess of cysteine (indicative of Cystinuria) and which, if any, have an excess of phenylalanine (indicative of PKU, Phenylketonuria). O 10 0 0 10 c) On a separate sheet of paper (either typed or written clearly), write a persuasive Results and Discussion section presenting the results and identifying the amino acids present in the patients' urine. Provide your data/evidence and logic clearly and thoroughly so that another scientist would be convinced of your conclusion.
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Cost Accounting Foundations and Evolutions
ISBN: 978-1111626822
8th Edition
Authors: Michael R. Kinney, Cecily A. Raiborn
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