Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 5, Problem 28RE
REFLECT AND APPLY An amino acid mixture consisting of phenylalanine, glycine, and glutamic acid is to be separated by HPLC. The stationary phase is aqueous and the mobile phase is a solvent less polar than water. Which of these amino acids will move the fastest? Which one will move the slowest?
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Chapter 5 Solutions
Biochemistry
Ch. 5 - RECALL What types of homogenization techniques are...Ch. 5 - RECALL When would you choose to use a...Ch. 5 - RECALL What is meant by salting out? How does it...Ch. 5 - RECALL What differences between proteins are...Ch. 5 - RECALL How could you isolate mitochondria from...Ch. 5 - RECALL Can you separate mitochondria from...Ch. 5 - RECALL Give an example of a scenario in which you...Ch. 5 - Prob. 8RECh. 5 - REFLECT AND APPLY You are purifying a protein for...Ch. 5 - Prob. 10RE
Ch. 5 - RECALL What is the basis for the separation of...Ch. 5 - RECALL What is the order of elution of proteins on...Ch. 5 - RECALL What are two ways that a compound can be...Ch. 5 - Prob. 14RECh. 5 - RECALL Why do most people elute bound proteins...Ch. 5 - RECALL What are two types of compounds that make...Ch. 5 - RECALL Draw an example of a compound that would...Ch. 5 - RECALL How can gel-filtration chromatography be...Ch. 5 - REFLECT AND APPLY Sephadex G-75 has an exclusion...Ch. 5 - Prob. 20RECh. 5 - RECALL What is the main difference between reverse...Ch. 5 - RECALL How does HPLC differ from ion-exchange...Ch. 5 - REFLECT AND APPLY Design an experiment to purify...Ch. 5 - REFLECT AND APPLY Referring to Question 23, how...Ch. 5 - Prob. 25RECh. 5 - REFLECT AND APPLY You wish to separate and purify...Ch. 5 - REFLECT AND APPLY An amino acid mixture consisting...Ch. 5 - REFLECT AND APPLY An amino acid mixture consisting...Ch. 5 - REFLECT AND APPLY In reverse-phase HPLC, the...Ch. 5 - REFLECT AND APPLY Gel-filtration chromatography is...Ch. 5 - RECALL What physical parameters of a protein...Ch. 5 - RECALL What types of compounds make up the gels...Ch. 5 - RECALL Of the two principal polymers used in...Ch. 5 - RECALL What types of macromolecules are usually...Ch. 5 - RECALL If you had a mixture of proteins with...Ch. 5 - RECALL What does SDSPAGE stand for? What is the...Ch. 5 - RECALL How does the addition of sodium...Ch. 5 - RECALL Why is the order of separation based on...Ch. 5 - RECALL The accompanying figure is from an...Ch. 5 - Prob. 40RECh. 5 - Prob. 41RECh. 5 - Prob. 42RECh. 5 - Prob. 43RECh. 5 - REFLECT AND APPLY What would happen during an...Ch. 5 - REFLECT AND APPLY A sample of an unknown peptide...Ch. 5 - REFLECT AND APPLY A sample of a peptide of unknown...Ch. 5 - REFLECT AND APPLY You are in the process of...Ch. 5 - REFLECT AND APPLY You are in the process of...Ch. 5 - Prob. 49RECh. 5 - Prob. 50RECh. 5 - Prob. 51RECh. 5 - Prob. 52RECh. 5 - Prob. 53RECh. 5 - Prob. 54RECh. 5 - RECALL What is the basis for the technique called...Ch. 5 - Prob. 56RECh. 5 - Prob. 57RECh. 5 - RECALL What are the main procedures involved in a...Ch. 5 - RECALL Where did western blot get its name?Ch. 5 - Prob. 60RECh. 5 - Prob. 61RECh. 5 - Prob. 62RECh. 5 - Prob. 63RECh. 5 - Prob. 64RECh. 5 - Prob. 65RE
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- REFLECT AND APPLY The enzyme D-amino acid oxidase has a very high turnover number because the D-amino acids are potentially toxic. The KM for the enzyme is in the range of 1 to 2 mM for the aromatic amino acids and in the range of 15 to 20 mM for such amino acids as serine, alanine, and the acidic amino acids. Which of these amino acids are the preferred substrates for the enzyme?arrow_forwardREFLECT AND APPLY Suggest a reason why the same protein system moves both sodium and potassium ions into and out of the cell.arrow_forwardREFLECT AND APPLY Look at Figure 2.17. If you did this titration using TRIS instead of phosphate, how would the titration curve look compared to the figure? Explain.arrow_forward
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- REFLECT AND APPLY Suggest an explanation for the observation that when proteins are chemically modified so that specific side chains have a different chemical nature, these proteins cannot be denatured reversibly.arrow_forwardREFLECT AND APPLY Sulfanilamide and related sulfa drugs were widely used to treat diseases of bacterial origin before penicillin and more advanced drugs were readily available. The inhibitory effect of sulfanilamide on bacterial growth can be reversed by p-aminobenzoate. Suggest a mode of action for sulfanilamide.arrow_forwardREFLECT AND APPLY You are in the process of determining the amino acid sequence of a peptide. After trypsin digestion followed by the Edman degradation, you see the following peptide fragments: LeuGlyArgGlySerPheTyrAsnHisSerGluAspMetCysLysThrTyrGluValCysMetHis What is abnormal concerning these results? What might have been the problem that caused it?arrow_forward
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