Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 17.6, Problem 15P
What amino acid would be formed when the
- a. acetaldehyde?
- b. 2-methylbutanal?
- c. 3-methylbutanal?
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Which amino acids on proteins can form glycosidic linkages?
Select one:
a. Cysteine and methionine
b. Tryptophan and phenylalanine
c. Glycine and proline
d. Serine and asparagine
e. Alanine and leucine
8. Hydrolysis of the peptide bonds in peptide below would result in
Пн
НзN-CHC-N-CHC-N-CНС-о
CH2
Он
СНCH3
ČH3
CH3
a.
no reaction.
b. a single amino acid.
c. two amino acids.
d. three amino acids.
e. four amino acids.
What amino acid is formed when the aldehyde used in the Strecker synthesis is a. acetaldehyde? b. 2-methylbutanal? c. 3-methylbutanal?
Chapter 17 Solutions
Essential Organic Chemistry, Global Edition
Ch. 17.1 - a. Explain why, when the imidazole ring of...Ch. 17.2 - Prob. 2PCh. 17.3 - Prob. 3PCh. 17.3 - Prob. 4PCh. 17.3 - Prob. 6PCh. 17.4 - Calculate the pI of each of the following amino...Ch. 17.4 - a. Which amino acid has the lowest pI value? b....Ch. 17.5 - What aldehyde is formed when valine is treated...Ch. 17.5 - Prob. 10PCh. 17.5 - Prob. 11P
Ch. 17.5 - Prob. 12PCh. 17.6 - Prob. 13PCh. 17.6 - What amino acid would be formed using the...Ch. 17.6 - What amino acid would be formed when the aldehyde...Ch. 17.7 - Pig liver esterase is an enzyme that catalyzes the...Ch. 17.8 - Prob. 17PCh. 17.8 - Prob. 18PCh. 17.8 - Prob. 19PCh. 17.8 - Prob. 20PCh. 17.10 - Prob. 21PCh. 17.10 - Prob. 22PCh. 17.10 - Why does cyanogen bromide not cleave on the C-side...Ch. 17.10 - Prob. 24PCh. 17.10 - Prob. 26PCh. 17.12 - Prob. 27PCh. 17.13 - a. Which would have the greatest percentage of...Ch. 17 - Draw the predominant form of the following amino...Ch. 17 - What is the pI of serine?Ch. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Which would have a higher percentage of negative...Ch. 17 - Draw the form of aspartate that predominates at...Ch. 17 - Prob. 35PCh. 17 - A professor was preparing a manuscript for...Ch. 17 - a. Why is the pKa of the glutamate side chain...Ch. 17 - Prob. 38PCh. 17 - Determine the amino acid sequence of a polypeptide...Ch. 17 - Prob. 40PCh. 17 - Prob. 41PCh. 17 - Three peptides were obtained from a trypsin...Ch. 17 - Prob. 43PCh. 17 - After the polypeptide shown here was treated with...Ch. 17 - The disulfide bridges of a polypeptide were...Ch. 17 - -Amino acids can be prepared by treating an...Ch. 17 - Reaction of a polypeptide with carboxypeptidase A...Ch. 17 - Prob. 48PCh. 17 - Prob. 49PCh. 17 - Show how valine can be prepared by a. a Strecker...Ch. 17 - Prob. 51PCh. 17 - Why is proline never found in an -helix?Ch. 17 - Determine the amino acid sequence of a polypeptide...Ch. 17 - Prob. 55PCh. 17 - A chemist wanted to test his hypothesis that the...Ch. 17 - A normal polypeptide and a mutant of the...
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- 6. The diagram below shows the structure of Thyrosine (tyr) and Methionine (met). a) Show the formation of zwitterion from both amino acids compoundsb) Show the complete reaction if Methionine in the aqueous acid solutionarrow_forward1. A. Draw the structure of L-valine in a strongly basic solution. B. What is the charge of this amino acid in a strongly basic solution?arrow_forwarda. State three factors that cause the uncatalyzed hydrolysis of an ester to be a slow reaction.b. Which is faster, the hydrolysis of an ester or the aminolysis of the same ester? Explain.arrow_forward
- Draw the structure of each peptide. Label the N-terminal and C-terminal amino acids and all amide bonds. a. Val-Glu b. Gly-His-Leu c. M-A-T-Tarrow_forward1. What test reagents are used for the alkylation of amino acids (alkylating reagents)? 2. What test reagents are used for acid hydrolyzation of amino acidsarrow_forward7. Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance interaction of the amino with the para position in aniline.arrow_forward
- Chemistry 1. Fill in the blanks with the appropriate word or words: B-Lactam acts by inhibition They are also liberating and thus exert their rapid bactericidal effect. 2. Which sentence is correct and which is incorrect? If it is incorrect, write the correct sentence a. ß - Lactams cause transpeptidation in glycopeptides. b. ß-lactams act in the third stage of murein complex synthesis. c. ß-lactams inhibit protein synthesis in bacteria. d. Bacitracin prevents the dephosphorylation of the carrier molecule of the peptidoglycan subunit. e. Cycloserine is involved in the second stage of peptidoglycan synthesis.arrow_forwardPlease answer these 3 questions below. 1. What type of interaction would you expect between the R groups, lysine and aspartic acid, in tertiary structure? a. Hydrophilic b. Disulfide bonds c. Hydrophobic/London dispersion d. Electrostatic interactions e. Hydrogen bond 2. Which of the following amino acids have R groups that are polar? Cystine, Glutamine, Leucine a. Cysteine, Glutamine, Leucine are all polar b. Only Cysteine and Glutamine are polar c. Only Glutamine and Leucine are polar d. Only Leucine is polar e. None of the listed amino acids are polararrow_forwardDescribe the amino acid illustrated above (at pH = 7.0).A. it is a polar, negatively-charged amino acidB. it is a non-polar, negatively-charged amino acidC. it is a polar, positively-charged amino acidD. it is a non-polar, positively-charged amino acidE. it is a non-polar, uncharged amino acidarrow_forward
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