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Carefully analyze the structures of the peptides 1-4 and determine which of the peptide(s) will be least solunle in water Phe Len Ser-Ala-le Ly»Gle-Ser-Arg-Asp Ly»-Ser-Ala-Tyr-Lys Gle-Lys-Arg-Arg-Asp Peptide-1 Peptide4 Peptide 2 Peptide-3 O 2 and 3 O 2 and 4 01,2 and 4 O 1 and 2 O only 1

Carefully analyze the structures of the peptides 1-4 and determine which of the peptide(s) will be least solunle in water Phe Len Ser-Ala-le Ly»Gle-Ser-Arg-Asp Ly»-Ser-Ala-Tyr-Lys Gle-Lys-Arg-Arg-Asp Peptide-1 Peptide4 Peptide 2 Peptide-3 O 2 and 3 O 2 and 4 01,2 and 4 O 1 and 2 O only 1

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Question 12
3 5. 10 15 QUESTION 12 Carefully analyze the structures of the peptides 1- 4 and determine which of the peptide(s) will be least solunle in water? Phe-Leu-Ser-Ala-le Lys-Glu-Ser-Arg-Asp Peptide-1 Lys-Ser-Ala-Tyr-Lys |Glu-Lys-Arg-Arg-Asp Peptide-3 Peptide-2 Peptide-4 O 2 and 3 O 2 and 4 O 1, 2 and 4 O 1 and 2 O only 1 QUESTION 13 Titration of amino acids by a strong base, for example NaOH, results in two pks. The reaction occurring for the pk2 is correctly represented by which of the following reactions? Recall, Pky referes to titration of O- NH2 + OH -NH + H20 -COOH + NH2 - -co0 + NH2* O co0 + NH3 - -COOH + NH2 OCOOH + OH - -CoO+ H20 O- NH3* + OH- -NH2 + H20 QUESTION 14 oxylate =1.8, for a-amino =9.33, and for imidazole (side chain) =6.00. At pH 4, the charges on histidine would be as follows: bmit. Click Save All Answers to save all answers. Save All Answers Clos Sh Spprt yCour
Transcribed Image Text:3 5. 10 15 QUESTION 12 Carefully analyze the structures of the peptides 1- 4 and determine which of the peptide(s) will be least solunle in water? Phe-Leu-Ser-Ala-le Lys-Glu-Ser-Arg-Asp Peptide-1 Lys-Ser-Ala-Tyr-Lys |Glu-Lys-Arg-Arg-Asp Peptide-3 Peptide-2 Peptide-4 O 2 and 3 O 2 and 4 O 1, 2 and 4 O 1 and 2 O only 1 QUESTION 13 Titration of amino acids by a strong base, for example NaOH, results in two pks. The reaction occurring for the pk2 is correctly represented by which of the following reactions? Recall, Pky referes to titration of O- NH2 + OH -NH + H20 -COOH + NH2 - -co0 + NH2* O co0 + NH3 - -COOH + NH2 OCOOH + OH - -CoO+ H20 O- NH3* + OH- -NH2 + H20 QUESTION 14 oxylate =1.8, for a-amino =9.33, and for imidazole (side chain) =6.00. At pH 4, the charges on histidine would be as follows: bmit. Click Save All Answers to save all answers. Save All Answers Clos Sh Spprt yCour
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