Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10.1, Problem 3RIA
Define entropy and enthalpy. Do living cells increase entropy within themselves? Do they increase entropy in the environment?
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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 10 Solutions
Prescott's Microbiology
Ch. 10.1 - Figure 10.2 The Relationship of G to the...Ch. 10.1 - What kinds of work are carried out in a cell?...Ch. 10.1 - What is thermodynamics? Summarize the first and...Ch. 10.1 - Define entropy and enthalpy. Do living cells...Ch. 10.1 - Prob. 4RIACh. 10.1 - Prob. 5RIACh. 10.2 - Why is ATP called a high-energy molecule? How is...Ch. 10.2 - Describe the energy cycle and ATPs role in it....Ch. 10.3 - Prob. 1MICh. 10.3 - Prob. 2MI
Ch. 10.4 - Figure 10.6 Electron Movement and Reduction...Ch. 10.4 - How is the direction of electron flow between...Ch. 10.4 - When electrons flow from the NAD+/NADH conjugate...Ch. 10.4 - Which among the following would be the best...Ch. 10.4 - In general terms, how is G related to E0? What is...Ch. 10.4 - Name and briefly describe the major electron...Ch. 10.6 - Will an enzyme with a relatively high Km have a...Ch. 10.6 - Prob. 2MICh. 10.6 - What is an apoenzyme? A holoenzyme? What are the...Ch. 10.6 - Illustrate the effect enzymes have on the...Ch. 10.6 - How does enzyme activity change with substrate...Ch. 10.6 - What special properties might an enzyme isolated...Ch. 10.6 - What are competitive and noncompetitive...Ch. 10.6 - How are enzymes and ribozymes similar? How do they...Ch. 10.7 - Figure 10.19 Allosteric Regulation. The structure...Ch. 10.7 - Figure 10.21 Feedback Inhibition. Feedback...Ch. 10.7 - Briefly describe the three ways a metabolic...Ch. 10.7 - Define the terms metabolic channeling and...Ch. 10.7 - Define allosteric enzyme and allosteric effector.Ch. 10.7 - Prob. 4RIACh. 10.7 - Prob. 5RIACh. 10.7 - What is the significance of the fact that...Ch. 10 - Examine the structures of macromolecules in...Ch. 10 - Most enzymes do not operate at their biochemical...Ch. 10 - Examine the branched pathway shown here for the...Ch. 10 - Prob. 4CHI
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