Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 39, Problem 14PIAT
Summary Introduction
To review:
The statement that the body temperatures of island tortoises always closely match with the temperatures in their environment.
Introduction:
Island gigantism refers to a biological phenomenon in which the size of the organism isolated on an island increases rapidly as compared to the mainland relatives. This gigantism is an evolutionary trend due to less predation and/or competition on islands.
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Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly
The pKa values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table.
Amino acid Amino pKa Carboxyl pKa Side-chain pKa
glutamate
9.60
2.34
histidine
9.17
1.82
4.25
6.00
tryptophan
9.39
2.38
serine
9.15
2.21
glycine
9.60
2.34
leucine
9.60
2.36
arginine
9.04
2.17
12.48
proline
10.96
1.99
Calculate the net charge of the molecule at pH 3.
net charge at pH 3:
Calculate the net charge of the molecule at pH 8.
net charge at pH 8:
Calculate the net charge of the molecule at pH 11.
net charge at pH 11:
Estimate the isoelectric point (pl) for this peptide.
pl:
Chapter 39 Solutions
Biological Science (6th Edition)
Ch. 39 - Prob. 1TYKCh. 39 - 2. Which of the following examples best describes...Ch. 39 - As an animal gets larger, which of the following...Ch. 39 - Prob. 4TYKCh. 39 - 5. For each of the following, explain how...Ch. 39 - Prob. 6TYUCh. 39 - Explainwhymostendotherms are homeothermic and...Ch. 39 - Prob. 8TYUCh. 39 - Prob. 9TYPSSCh. 39 - 10. The dinosaur Apatosaurus (Brontosaurus) is one...
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