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 23.5, Problem GQ
Interpretation Introduction
Interpretation:
An explanation for the given order of association found in DNA has to be identified from the given options.
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The mutated form of hemoglobin (hemoglobin S, or HbS) in sickle-cell anemia results from
the replacement of a glutamate residue by a valine residue at position 6 in the ß chain of the
protein. Normal hemoglobin is designated HbA.
Under conditions of low [O₂], HbS aggregates and distorts the red blood cell into a sickle
shape. See image of eight aggregated HbS molecules. Sickled red blood cells are relatively
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arginine
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0
4) In the lab you are extracting and enzyme called catalase
from a potato and want to use this enzyme to speed up a
reaction in the lab. The potato usually grows in soil pH of
5.5 and a temperature of 18 °C. You extract the enzyme and
run a reaction with it in the following conditions. pH 9.5
and temperature = 20 °C. What can be said about the
enzymes activity? If activity is low how would you correct
this issue? Please explain in detail and in your own words.
All amino acids have two ionizable functional groups: an a-amino group (average pK, of 9.4) and an a-carboxylic acid group
(average pK, of 2.2). Glutamic acid has an ionizable side chain (R group) with a pK, of about 4.1. One of the possible
ionization states of glutamic acid is shown in the image.
H₂N-CH-C-OH
CH₂
At what pH would this structure of glutamic acid be the predominant ionization state? Consider the ionization state of all
three of the functional groups.
OH
The protonated form of the R group of glutamic acid is shown in the structure. The ratio of the protonated form to the charged
(deprotonated) form depends on the pK, of the R group and the pH of the solution.
2.6
4.1
1.5
Select the pH values at which the charged form of the R group would predominate.
7.0
11.3
Chapter 23 Solutions
Organic Chemistry
Ch. 23.1 - Prob. 23.1PCh. 23.2 - Prob. 23.2PCh. 23.2 - Prob. 23.3PCh. 23.2 - Prob. 23.4PCh. 23.5 - Prob. 23.5PCh. 23.5 - Prob. AQCh. 23.5 - What is the hybridization of the nitrogen in...Ch. 23.5 - Prob. CQCh. 23.5 - The pKas of the conjugate acids of aniline and...Ch. 23.5 - Prob. EQ
Ch. 23.5 - Prob. FQCh. 23.5 - Prob. GQCh. 23.5 - Select the stronger acid from each pair of...Ch. 23.6 - Prob. 23.7PCh. 23.6 - Prob. 23.8PCh. 23.6 - Prob. 23.9PCh. 23.7 - Prob. 23.10PCh. 23.8 - Prob. 23.11PCh. 23.8 - Prob. 23.12PCh. 23.8 - Prob. 23.13PCh. 23.9 - Prob. 23.14PCh. 23.10 - In Example 23.15, you considered the product of...Ch. 23 - Prob. 23.16PCh. 23 - Prob. 23.17PCh. 23 - Prob. 23.18PCh. 23 - Prob. 23.19PCh. 23 - Prob. 23.20PCh. 23 - Prob. 23.21PCh. 23 - Prob. 23.22PCh. 23 - Account for the formation of the base peaks in...Ch. 23 - Prob. 23.24PCh. 23 - Select the stronger base from each pair of...Ch. 23 - The pKa, of the conjugate acid of morpholine is...Ch. 23 - Which of the two nitrogens in pyridoxamine (a form...Ch. 23 - Prob. 23.28PCh. 23 - Prob. 23.29PCh. 23 - Prob. 23.30PCh. 23 - Prob. 23.31PCh. 23 - Suppose you have a mixture of these three...Ch. 23 - Prob. 23.33PCh. 23 - Prob. 23.34PCh. 23 - Prob. 23.35PCh. 23 - Prob. 23.36PCh. 23 - Prob. 23.37PCh. 23 - (S)-Glutamic acid is one of the 20 amino acid...Ch. 23 - Prob. 23.39PCh. 23 - Propose a structural formula for the compound...Ch. 23 - Prob. 23.41PCh. 23 - The pyrolysis of acetic esters to give an alkene...Ch. 23 - Propose steps for the following conversions using...Ch. 23 - Show how to bring about each step in this...Ch. 23 - Show how to bring about each step in the following...Ch. 23 - Prob. 23.48PCh. 23 - Prob. 23.49PCh. 23 - Methylparaben is used as a preservative in foods,...Ch. 23 - Prob. 23.51PCh. 23 - Prob. 23.52PCh. 23 - Propose a synthesis for the systemic agricultural...Ch. 23 - Prob. 23.54PCh. 23 - Several diamines are building blocks for the...Ch. 23 - Prob. 23.56PCh. 23 - Prob. 23.57PCh. 23 - Prob. 23.58PCh. 23 - Prob. 23.59PCh. 23 - Following is a retrosynthesis for the coronary...Ch. 23 - Prob. 23.61PCh. 23 - Prob. 23.62PCh. 23 - Given this retrosynthetic analysis, propose a...Ch. 23 - Prob. 23.64PCh. 23 - Following is a series of anorexics (appetite...Ch. 23 - Prob. 23.66PCh. 23 - Prob. 23.67PCh. 23 - Show how the synthetic scheme developed in Problem...Ch. 23 - Prob. 23.69PCh. 23 - Prob. 23.70PCh. 23 - Prob. 23.71PCh. 23 - Prob. 23.72P
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