6th Edition

ISBN: 9781260325294

Author: SMITH

Publisher: RENT MCG

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Textbook Question

Chapter 27, Problem 37P

a. Draw the structure of the tripeptide A–A–A, and label the two ionizable functional groups.

b. What is the predominant form of A–A–A at pH = 1 ?

c. The pKa values for the two ionizable functional groups (3.39 and 8.03) differ considerably from the pKa values of alanine (2.35 and 9.87; see Table 29.1). Account for the observed pKa differences.

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Chapter 27, Problem 36P

Chapter 27, Problem 38P

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Chapter 27 Solutions

ORGANIC CHEMISTRY W/BIOLOGICAL TOPICS

Ch. 27.1 - Prob. 1P Ch. 27.1 - Problem 29.2 What form exists at the isoelectric...Ch. 27.1 - Problem 29.3 Explain why the of the group of an...Ch. 27.1 - Prob. 4P Ch. 27.2 - Problem 29.5 What -halo carbonyl compound is...Ch. 27.2 - Problem 29.6 The enolate derived from diethyl...Ch. 27.2 - Problem 29.7 What amino acid is formed when is...Ch. 27.2 - Problem 29.8 What aldehyde is needed to synthesize...Ch. 27.2 - Problem 29.9 Draw the products of each...Ch. 27.3 - Prob. 10P

Ch. 27.3 - Prob. 11P Ch. 27.3 - Prob. 12P Ch. 27.4 - Problem 29.13 What alkene is needed to synthesize...Ch. 27.5 - Problem 29.14 Draw the structure of each peptide....Ch. 27.5 - Problem 29.15 Name each peptide using both the...Ch. 27 - Draw the product formed when the following amino...Ch. 27 - With reference to the following peptide: a...Ch. 27 - Prob. 31P Ch. 27 - Histidine is classified as a basic amino acid...Ch. 27 - Tryptophan is not classified as a basic amino acid...Ch. 27 - What is the structure of each amino acid at its...Ch. 27 - What is the predominant form of each of the...Ch. 27 - 29.37 What is the predominant form of each of the...Ch. 27 - a. Draw the structure of the tripeptide A–A–A, and...Ch. 27 - 29.39 Draw the organic products formed in each...Ch. 27 - 29.40 What alkyl halide is needed to synthesize...Ch. 27 - Prob. 50P Ch. 27 - Draw the structure for each peptide: (a) Phe–Ala;...Ch. 27 - 29.52 For the tetrapeptide Asp–Arg–Val–Tyr: a....Ch. 27 - Prob. 53P Ch. 27 - Prob. 54P Ch. 27 - 29.55 Draw the amino acids and peptide fragments...Ch. 27 - Prob. 56P Ch. 27 - Prob. 57P Ch. 27 - Prob. 58P Ch. 27 - 29.59 An octapeptide contains the following amino...Ch. 27 - 29.60 Draw the organic products formed in each...Ch. 27 - 29.65 Draw the mechanism for the reaction that...Ch. 27 - 29.66 Which of the following amino acids are...Ch. 27 - 29.67 After the peptide chain of collagen has been...Ch. 27 - Prob. 68P Ch. 27 - Prob. 69P Ch. 27 - 29.70 The anti-obesity drug orlistat works by...Ch. 27 - Prob. 71P

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Solution Summary: The author explains that the structure of tripeptide A-A is to be drawn and two ionizable groups will be labeled.

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Chapter 27 Solutions