Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 12, Problem 12.9PS
Sorting Proteins. Specific structural features tag proteins for transport to various intracellular and extracellular destinations. Several examples were described in this chapter, including (1) the short peptide Lys-Asp-Glu-Leu, (2) characteristic hydrophobic membrane-spanning domains, and (3) mannose-6-phosphate residues attached to oligosaccharide side chains. For each structural feature, answer the following questions:
(a) Where in the cell is the tag incorporated into the protein?
(b) How does the tag ensure that the protein reaches its destination?
(c) Where would the protein likely go if you were to remove the tag?
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which collagen and elastin fibers are embedded. Hyaluronic acid, chondroitin 4-sulfate,
heparin, are among the important glycosaminoglycans.
10. Glycoproteins are a group of biochemically important compounds with a variable
composition of carbohydrate (1-90%), covalently bound to protein. Several enzymes,
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Chapter 2: CARBOHYDRATES
SELF-ASSESSMENT EXERCISES
I. Essay questions
1. Define and classify carbohydrates with suitable examples. Add a note on the functions of
carbohydrates.
2. Describe the structure and functions of mucopolysaccharides.
3. Give an account of the structural configuration of monosaccharides, with special reference to
glucose.
4. Discuss the structure and functions of 3 biochemically important disaccharides.
5. Define polysaccharides and describe the structure of 3 homopolysaccharides.
III. Fill…
Please help me with this question. More than one answer may be correct.
Elastin _______.
Options:
A)
has a repeating structure of 3 amino acids such as Gly-Pro-X
B)
crosslinks with numerous other elastin peptides to make an elastic fiber
C)
is physically attached to the smooth endoplasmic reticulum
D)
is physically attached to ribosomes
E)
is rich in hydrophobic residues
No plagiarism please. Use your own words. Thanks.
Discuss the preferred locations of different classes of amino acids in transmembrane proteins.
Explain the formation of thioether-linked prenyl anchor proteins.
Explain the structure of caveolae.
Chapter 12 Solutions
Becker's World of the Cell (9th Edition)
Ch. 12 - How do differences in the structure and...Ch. 12 - Why is it necessary for material flowing through...Ch. 12 - What problems would you likely see in cells...Ch. 12 - What features of membrane lipids and proteins...Ch. 12 - Based on what you learned in this chapter about...Ch. 12 - How would an inhibitor of membrane fusion...Ch. 12 - What intracellular transport processes would you...Ch. 12 - What problems would a cell have if it could not...Ch. 12 - Although the plant vacuole resembles the lysosome...Ch. 12 - Why is it important for the biochemical reactions...
Ch. 12 - Compartmentalization of Function. Each of the...Ch. 12 - Endoplasmic Reticulum. For each of the following...Ch. 12 - Biosynthesis of Integral Membrane Proteins. In...Ch. 12 - Coated Vesicles in Intracellular Transport. For...Ch. 12 - QUANTITATIVE Interpreting Data. Each of the...Ch. 12 - Cellular Digestion. For each of the following...Ch. 12 - QUANTITATIVE Virus Entry by Endocytosis....Ch. 12 - Prob. 12.8PSCh. 12 - Sorting Proteins. Specific structural features tag...Ch. 12 - Prob. 12.10PSCh. 12 - Whats Happening? Researchers have discovered a...
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