Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 12.2, Problem 6CC
MAKE CONNECTIONS → What other functions do actin and tubulin carry out? Name the proteins they interact with to do so. (Review Figures 6.21a and 6.26a.)
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21. Which protein structure is most consistent for the hydropathy graph of the intrinsic membrane
protein shown below?
+168 F
+84
-84
-168
20
100
200
300
First amino acid in window
A) A seven-helix serpentine receptor
B) A Type I integral membrane protein
C) A Type Il integral membrane protein
D) A GPI-anchored protein
E) A beta-barrel protein with about 10 membrane-spanning strands.
Hydropathy index (kJ mol-1)
Q12
Describe critical concentration (Cc)• Describe actin/microtubule polymerization• Contrast “T” and “D” forms of actin and microtubule subunits– Which nucleotide is bound to actin monomers in “T” and “D” forms?– Which nucleotide is bound to microtubule dimers in “T” and “D” forms? – Which subunit form, “T” or “D,” has higher affinity for polymerization? What are the implications of this on Cc(T) and Cc(D)?
Chapter 12 Solutions
Campbell Biology (11th Edition)
Ch. 12.1 - How many chromosomes are drawn in each part of...Ch. 12.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 12.2 - How many chromosomes are shown in the illustration...Ch. 12.2 - Compare cytokinesis in animal cells and plant...Ch. 12.2 - During which stages of the cell cycle does a...Ch. 12.2 - Compare the roles of tubulin and actin during...Ch. 12.2 - A kinetochore has been compared to a coupling...Ch. 12.2 - MAKE CONNECTIONS What other functions do actin...Ch. 12.3 - In Figure 12.14, why do the nuclei resulting from...Ch. 12.3 - How does MPF allow a cell to pass the G2 phase...
Ch. 12.3 - MAKE CONNECTIONS Explain how receptor tyrosine...Ch. 12 - Differentiate between these terms: chromosome,...Ch. 12 - In which of the three phases of interphase and the...Ch. 12 - Explain the significance of the G1, G2, and M...Ch. 12 - Through a microscope, you can see a cell plate...Ch. 12 - Vinblastine is a standard chemotherapeutic drug...Ch. 12 - One difference between cancer cells and normal...Ch. 12 - The decline of MPF activity at the end of mitosis...Ch. 12 - In the cells of some organisms, mitosis occurs...Ch. 12 - Which of the following does not occur during...Ch. 12 - Cell A has half as much DNA as cells B, C, and D...Ch. 12 - The drug cytochalasin B blocks the function of...Ch. 12 - VISUAL SKILLS The light micrograph shows dividing...Ch. 12 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 12 - EVOLUTION CONNECTION The result of mitosis is that...Ch. 12 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 12 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 12 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- Macmillan Learning Integral membrane proteins have different characteristics and functions than peripheral membrane proteins. Identify the statements that are properties of integral membrane proteins and those that are properties of peripheral membrane proteins. Integral membrane proteins reach through all or part of the membrane act as tunnels through the cell membrane attach at the cell membrane surface Peripheral membrane proteins can move laterally (sideways) in the hydrophobic part of the membranearrow_forwardGen bio1arrow_forwardExplain how proteins are inserted into the ER membrane, including the relationship between signal sequences and transmembrane domains. Briefly explain protein folding and quality control processes that occur in the ER, and describe the types of protein glycosylations that occur in the ER and are then modified in the Golgiarrow_forward
- VISUALIZE Sketch a simple flow diagram that shows the relationships among the following: RNA, translation, DNA, transcription, and polypeptide.arrow_forwardHow can a cell use an extracellular peripheral protein as the receptor to transmit a signal into the cell?arrow_forwardMembrane Protein Insertion in the ER This figure displays five small hypothetical proteins. The a-helix secondary structure of the protein is bracketed and the number of amino acids in the helix is indicated. If the hypothetical ER localization sequence is green-yellow-yellow-green-yellow-red, what protein could potentially be a transmembrane protein in the plasma membrane? = Acidic = Basic = Polar (uncharged) O = Hydrophobic CO₂ T 20 CO2 T 20 NH₂ A. T 20 NH₂ B. NH₂ C. T 20 NH₂ D. NH₂ E. tot 10arrow_forward
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