Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 27, Problem 27.40P
Draw a structural formula for the product formed when alanine is treated with the following reagents.
- (a) Product from (c), L-Alanine ethyl ester, DCC
- (b) Product from (d), L-Alanine ethyl ester, DCC
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Draw the structure of each of the following tripeptides:(a) Aspartic acid-histidine-tryptophan(b) Glycine-cysteine-tyrosine with the charges existing in cell fluid
(b) Which of the following common amino acids has more than one amino group?
(a) Draw the structures of ammonia and urea.(b) Write the reaction showing ammonia acting as a base in water.(c) Write a reaction showing the formation of carbamoyl phosphate from ammonia, carbon dioxide, and any other reactants.(d) Draw the structures of ornithine and lysine. Explain how they are different. (e) Draw the structure of the compound formed when ornithine reacts with carbamoyl phosphate. (f) Write the transamination reaction of alanine with alpha-ketoglutarate. Name the products that are formed.
Chapter 27 Solutions
Organic Chemistry
Ch. 27.1 - Of the 20 protein-derived amino acids shown in...Ch. 27.2 - Prob. 27.2PCh. 27.2 - Prob. 27.3PCh. 27.3 - Draw a structural formula for Lys-Phe-Ala. Label...Ch. 27.4 - Which of these tripeptides are hydrolyzed by...Ch. 27.4 - Deduce the amino acid sequence of an undecapeptide...Ch. 27.6 - Prob. 27.7PCh. 27 - What amino acid does each abbreviation stand for?...Ch. 27 - The configuration of the chiral center in -amino...Ch. 27 - Assign an R or S configuration to the chiral...
Ch. 27 - Prob. 27.11PCh. 27 - Prob. 27.12PCh. 27 - Draw zwitterion forms of these amino acids. (a)...Ch. 27 - Prob. 27.14PCh. 27 - Why is Arg often referred to as a basic amino...Ch. 27 - Prob. 27.16PCh. 27 - Prob. 27.17PCh. 27 - Prob. 27.18PCh. 27 - Prob. 27.19PCh. 27 - Prob. 27.20PCh. 27 - Both norepinephrine and epinephrine are...Ch. 27 - Prob. 27.22PCh. 27 - Draw a structural formula for the form of each...Ch. 27 - Prob. 27.24PCh. 27 - Write the zwitterion form of alanine and show its...Ch. 27 - Prob. 27.26PCh. 27 - Write the form of aspartic acid most prevalent at...Ch. 27 - Prob. 27.28PCh. 27 - Prob. 27.29PCh. 27 - For lysine and arginine, the isoelectric point,...Ch. 27 - Prob. 27.31PCh. 27 - Account for the fact that the isoelectric point of...Ch. 27 - Prob. 27.33PCh. 27 - Prob. 27.34PCh. 27 - At pH 7.4, the pH of blood plasma, do the majority...Ch. 27 - Prob. 27.36PCh. 27 - Prob. 27.37PCh. 27 - Prob. 27.38PCh. 27 - A chemically modified guanidino group is present...Ch. 27 - Draw a structural formula for the product formed...Ch. 27 - Prob. 27.41PCh. 27 - Prob. 27.42PCh. 27 - A decapeptide has the following amino acid...Ch. 27 - Following is the primary structure of glucagon, a...Ch. 27 - Prob. 27.45PCh. 27 - Draw a structural formula of these tripeptides....Ch. 27 - Estimate the pI of each tripeptide in Problem...Ch. 27 - Glutathione (G-SH), one of the most common...Ch. 27 - Following are a structural formula and a...Ch. 27 - Prob. 27.50PCh. 27 - Prob. 27.51PCh. 27 - Prob. 27.52PCh. 27 - Prob. 27.53PCh. 27 - Prob. 27.54PCh. 27 - Distinguish between intermolecular and...Ch. 27 - Prob. 27.56PCh. 27 - Prob. 27.57P
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- What amino acids do the following abbreviations stand for? Draw the structure of each.(a) Val (b) Ser (c) Gluarrow_forwardWhich of the following functional groups are found in an aldose sugar? (Sec. 20.4) (a) alcohol and aldehyde (b) alcohol and ketone (c) aldehyde and ketone (d) aldehyde and phenol (e) none of the abovearrow_forwardWhen two amino acids react to form a peptide bond, one forms: A.) amide by an electrophilic acylic substitution B.) amide by nucleophilic acylic substitution C.) lactam by nucleophilic acylic substitution D.) lactam by an electrophilic acyl substitutionarrow_forward
- A triglyceride can be optically active if it contains two or more different fatty acids.(a) Draw the structure of an optically active triglyceride containing one equivalent of myristic acid and two equivalentsof oleic acidarrow_forward(a) Which of the common amino acids have more than one carboxyl group?arrow_forwardb Explain why nylon-6 can be classified as a polyamide. c Explain why some chemists classify nylon-6 as an addition polymer and not a condensation polymer. d Suggest the product of hydrolysis of nylon-6.arrow_forward
- 1.) A solution contains cysteine and alanine. What are the possible dipeptide products that can form from this mixture?arrow_forwardDraw the formula of each of the following tripeptides: (a)Aspartic acid- histidine- tryptophan (b) Glycine- cysteine with the charges that exist in the cell fluid (c) Lysine-phenylalanine- threonine (d)Alanine- leucine- valine with the charges that exist in fluidarrow_forward(a) Which amino acid is present in higher amounts than glycine?(b) How many more molecules of that amino acid are presentthan the number of molecules in 1.0 mole of glycine?arrow_forward
- (a) Provide four distinct forms of phenylalanine. (b) Rank the solubility of these forms in water. (c) Explain your ranking.arrow_forward(PROTEIN) Give the general structure of amino acid.arrow_forward5) The following amide is formed when benzoic acid reacts with ethanamine: True or False NHCCH, ida nbbroviated as Gly-Lys is the same as the dipeptide abbreviated as Lys-Gly.arrow_forward
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