SMARTWORKS FOR CHEMISTRY: ATOMS FOCUSED
2nd Edition
ISBN: 9780393644777
Author: Gilbert
Publisher: MCGRAW-HILL HIGHER EDUCATION
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The property of water solutions to conduct electric current is possible for all of the 20 standard amino acids. True or False?
15.
The chemical structure of oxamide
NH,
is shown below. Highlight each atom that is
an amino group.
:0::0:
C
C –N –H
|
H –N –H
H
Chapter 20 Solutions
SMARTWORKS FOR CHEMISTRY: ATOMS FOCUSED
Ch. 20 - Prob. 20.1VPCh. 20 - Prob. 20.2VPCh. 20 - Prob. 20.3VPCh. 20 - Prob. 20.4VPCh. 20 - Prob. 20.5VPCh. 20 - Prob. 20.6VPCh. 20 - Prob. 20.7VPCh. 20 - Prob. 20.8VPCh. 20 - Prob. 20.9VPCh. 20 - Prob. 20.10VP
Ch. 20 - Prob. 20.11QACh. 20 - Prob. 20.12QACh. 20 - Prob. 20.13QACh. 20 - Prob. 20.14QACh. 20 - Prob. 20.15QACh. 20 - Prob. 20.16QACh. 20 - Prob. 20.17QACh. 20 - Prob. 20.18QACh. 20 - Prob. 20.19QACh. 20 - Prob. 20.20QACh. 20 - Prob. 20.21QACh. 20 - Prob. 20.22QACh. 20 - Prob. 20.23QACh. 20 - Prob. 20.24QACh. 20 - Prob. 20.25QACh. 20 - Prob. 20.26QACh. 20 - Prob. 20.27QACh. 20 - Prob. 20.28QACh. 20 - Prob. 20.29QACh. 20 - Prob. 20.30QACh. 20 - Prob. 20.31QACh. 20 - Prob. 20.32QACh. 20 - Prob. 20.33QACh. 20 - Prob. 20.34QACh. 20 - Prob. 20.35QACh. 20 - Prob. 20.36QACh. 20 - Prob. 20.37QACh. 20 - Prob. 20.38QACh. 20 - Prob. 20.39QACh. 20 - Prob. 20.40QACh. 20 - Prob. 20.41QACh. 20 - Prob. 20.42QACh. 20 - Prob. 20.43QACh. 20 - Prob. 20.44QACh. 20 - Prob. 20.45QACh. 20 - Prob. 20.46QACh. 20 - Prob. 20.47QACh. 20 - Prob. 20.48QACh. 20 - Prob. 20.49QACh. 20 - Prob. 20.50QACh. 20 - Prob. 20.51QACh. 20 - Prob. 20.52QACh. 20 - Prob. 20.53QACh. 20 - Prob. 20.54QACh. 20 - Prob. 20.55QACh. 20 - Prob. 20.56QACh. 20 - Prob. 20.57QACh. 20 - Prob. 20.58QACh. 20 - Prob. 20.59QACh. 20 - Prob. 20.60QACh. 20 - Prob. 20.61QACh. 20 - Prob. 20.62QACh. 20 - Prob. 20.63QACh. 20 - Prob. 20.64QACh. 20 - Prob. 20.65QACh. 20 - Prob. 20.66QACh. 20 - Prob. 20.67QACh. 20 - Prob. 20.68QACh. 20 - Prob. 20.69QACh. 20 - Prob. 20.70QACh. 20 - Prob. 20.71QACh. 20 - Prob. 20.72QACh. 20 - Prob. 20.73QACh. 20 - Prob. 20.74QACh. 20 - Prob. 20.75QACh. 20 - Prob. 20.76QACh. 20 - Prob. 20.77QACh. 20 - Prob. 20.78QACh. 20 - Prob. 20.79QACh. 20 - Prob. 20.80QACh. 20 - Prob. 20.81QACh. 20 - Prob. 20.82QACh. 20 - Prob. 20.83QACh. 20 - Prob. 20.84QA
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- (a) Draw the Lewis structure for the amino acid phenylalanine, showing the amino group and the carboxylic group in their un-ionized forms. (b) Draw the Lewis structure for the zwitterionic form of phenylalanine. (c) Which of these structures will be the predominant form at physiological pH?arrow_forward. How many unique amino acid sequences are possible for a tripeptide containing only the amino acids gly, ala, and cys, with each amino acid occurring only once in each molecule?arrow_forwardWhat special role does the amino acid cysteine have in the peptides vasopressin and oxytocin?arrow_forward
- 22-49 Based on your knowledge of the chemical properties of amino acid side chains, suggest a substitution for leucine in the primary structure of a protein that would probably not change the character of the protein very much.arrow_forwardGive an example of amino acids that could give rise to the interactions pictured in Fig. 21-24 that maintain the tertiary structures of proteins.arrow_forwardDo the amino acid sequences: valine-asparagine and asparagine-valine represent the same compound? Explain.arrow_forward
- For the tripeptide SerArgIle which amino acid residues a. are hydrophilic b. are hydrophobic c. possess polar neutral R groups d. participate in two amide linkagesarrow_forward22-21 Explain why an amino acid cannot exist in an un-ionized form at any pH.arrow_forwardTo which family of mirror-image isomers do nearly all naturally occurring amino acids belong?arrow_forward
- What characteristics indicate that amino acids exist as zwitterions?arrow_forwardFor the tripeptide AlaValGly which amino acid residues, if any, a. are hydrophilic b. are hydrophobic c. possess nonpolar R groups d. participate in two amide linkagesarrow_forward22-62 Distinguish between intermolecular and intramolecular hydrogen bonding between backbone groups. Where in protein structures do you find one, and where do you find the other?arrow_forward
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