Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 26.SE, Problem 58AP
Aspartame, a nonnutritive sweetener marketed under such trade names as Equal, NutraSweet, and Canderel, is the methyl ester of a simple dipeptide, Asp-Phe-OCH3.
(a) Draw the structure of aspartame.
(b) The isoelectric point of aspartame is 5.9. Draw the principal structure present in aqueous solution at this pH.
(c) Draw the principal form of aspartame present at physiological pH=7.3.b
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Students have asked these similar questions
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1- MATCH each of the following terms to a structure from the list below. There is only one correct
structure for each term and structures may be used more than once. Place the letter of the structure
in the blank to the left of the corresponding term.
A. Sanger dideoxy method
C. Watson-Crick
B. GAUCGUAAA
D. translation
E. HOH2C
OH
OH
G. transcription
I. AUGGCUGAG
0
K. OPOH2C
0-
OH
N-
H
NH2
F. -OPOH2C
0-
OH
OH
H. Maxam-Gilbert method
J. replication
N
L.
HOH2C
a.
b.
C.
d.
e.
f.
g.
B
M. AGATCGCTC
a pyrimidine nucleoside
RNA base sequence with guanine at the 3' end.
DNA base sequence with cytosine at the 3' end.
a purine nucleoside
DNA sequencing method for the human genome
2'-deoxyadenosine 5'-phosphate
process by which mRNA directs protein synthesis
OH
NH2
Please use hand drawn structures when needed
B. Classify the following amino acid. Atoms other than carbon and hydrogen are labeled.
a. acidic
b. basic
C.
neutral
C.
Consider the following image.
Which level of protein structure is shown here?
a.
primary
b. secondary
c. tertiary
d. quaternary
D.
Consider the following image.
H
RH
H
HR
H R
HR
HR
RH
Which level of protein structure is shown in the box?
a. primary
b. secondary
R
c.
tertiary
d.
quaternary
コー
R
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