Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 17, Problem 23TYK
Summary Introduction
Introduction: Mutations refer to the alteration in the genome of an organism. Mutation is caused as a result of an error in the replication process of DNA. Mutations can be neutral, beneficial, or harmful for any organism. The alterations caused as a result of mutations are permanent in nature.
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Select the best explanation of the unfolded protein response (UPR):
O A. The UPR senses misfolded proteins through detection of proteins tagged with polyubiquitin chains and sends them for degradation in the lysosome
B. The UPR senses misfolded proteins through recognition of specific oligosaccharide conformations and sends them for degradation via the
proteasome
C. The UPR senses high levels of misfolded proteins in the ER and activates ubiquitin ligases to add ubiquitin to the misfolded proteins and target them
for secretion from the cell.
D. The UPR senses ER stress in the form of high levels of misfolded proteins and signals the cell to halt translation and induces expression of ER
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The phosphorylation of proteins is an important regulatory mechanism. a. Name three amino acids that are frequently phosphorylated in regulated proteins. b. Draw the phosphorylated version of the amino acids named in part “a.”
Indicate (x) if the following statements about synthesis of proteins containing an ER
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True False
i. Translation is initiated by ribosomes located on the ER membrane
The signal recognition particle (SRP) binds a sequence of nonpolar
(hydrophobic) amino acids.
ii.
iii.
The ER signal sequence may be cleaved by signal peptidase on the
cytoplasmic side of the ER membrane.
iv.
The part of a transmembrane protein that will ultimately be located
outside of the cell is inserted into the lumen of the ER during
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A stop transfer sequence is a series of polar amino acids that halts
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Chapter 17 Solutions
Study Guide for Campbell Biology
Ch. 17 - a. In what three ways does RNA differ from DNA? b....Ch. 17 - Prob. 2IQCh. 17 - Prob. 3IQCh. 17 - How does the mRNA that leaves the nucleus differ...Ch. 17 - Prob. 5IQCh. 17 - In the following diagrams of polypeptide...Ch. 17 - What determines if a ribosome becomes bound to the...Ch. 17 - Define the following terms and explain what type...Ch. 17 - You have been introduced to several types of RNA...Ch. 17 - Prob. 2SYK
Ch. 17 - What is the genetic code? Explain redundancy and...Ch. 17 - Prepare a concept map showing the types and...Ch. 17 - Prob. 1TYKCh. 17 - Transcription involves the transfer of information...Ch. 17 - Prob. 3TYKCh. 17 - Prob. 4TYKCh. 17 - Which of the following is a statement of the...Ch. 17 - Prob. 6TYKCh. 17 - Prob. 7TYKCh. 17 - Prob. 8TYKCh. 17 - Which of the following is true of RNA processing?...Ch. 17 - Prob. 10TYKCh. 17 - Prob. 11TYKCh. 17 - Prob. 12TYKCh. 17 - Prob. 13TYKCh. 17 - Prob. 14TYKCh. 17 - What type of bonding is responsible for...Ch. 17 - Prob. 16TYKCh. 17 - Prob. 17TYKCh. 17 - Prob. 18TYKCh. 17 - Prob. 19TYKCh. 17 - Prob. 20TYKCh. 17 - Prob. 21TYKCh. 17 - Prob. 22TYKCh. 17 - Prob. 23TYKCh. 17 - Prob. 24TYKCh. 17 - Prob. 25TYKCh. 17 - Prob. 26TYKCh. 17 - Prob. 27TYKCh. 17 - Prob. 28TYK
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