Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 4, Problem 2CQ
Explain how motor proteins and cytoskeletal filaments interact to promote three different types of movements: movement of a cargo, movement of a filament, and bending of a filament.
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A melanosome (type of vesicle containing the pigment melanin) is transported towards the nucleus of the cell. The hydrolysis of ATP is involved with this movement. Identify the most likely motor protein and cytoskeletal filament involved with this transport.
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Explain how the structure of intermediate filaments makes them better suited to provide mechanical strength than either microtubules or actin filaments.?
Chapter 4 Solutions
Biology
Ch. 4.1 - What properties of deep-sea vents made them...Ch. 4.1 - Which protobiont seems most similar to todays...Ch. 4.1 - Core Skill: Connections Look back at Figure 3.11....Ch. 4.1 - Prob. 3CCCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 2CCCh. 4.3 - Prob. 1CSCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2CSCh. 4.4 - Prob. 1CS
Ch. 4.4 - Describe the type of movements that occur between...Ch. 4.4 - Prob. 2CSCh. 4.5 - Prob. 1CCCh. 4.5 - Prob. 1CSCh. 4.5 - If we consider the Golgi apparatus as three...Ch. 4.5 - The Nucleus and Endomembrane System Experimental...Ch. 4.5 - Prob. 2EQCh. 4.5 - Prob. 3EQCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - Core Skill: Connections Look ahead to Figure...Ch. 4.7 - Prob. 1CCCh. 4.7 - Prob. 2CCCh. 4 - The cell theory states that a. all living things...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Each of the following is part of the endomembrane...Ch. 4 - Prob. 6TYCh. 4 - Functions of the smooth endoplasmic reticulum...Ch. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Which of the following observations would not be...Ch. 4 - What are the four stages that led to the origin of...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - Prob. 3CQCh. 4 - Discuss the roles of the genome and proteome in...Ch. 4 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Briefly describe how the components of the cytoskeleton filaments get to the right location in the cell for filament formation.arrow_forwardDetermine whether the following statements apply to microtubules, intermediate filaments, or actin filaments."a. Thinnest cytoskeletal filaments; are associated with the motor protein myosinb. Consist of proteins twisted together into a ropelike formc. Allow certain cells to “crawl” and change the shape and size of the celld. Consist of protein subunits surrounding a hollow coree. Help a cell to resist mechanical stressf. Grow from the cell’s centrosome"arrow_forwardAbout intermediate filaments, microfilaments and microtubules, describes:a) In detail, their structures, characteristics as well as how their monomers can form the filamentsb) Functions of them in animal cellsarrow_forward
- Explain the structure of dynein and kinesin and how their structures aid in organelle movement within a eukaryotic cell. Explain the structure of a muscle fiber and how the two proteins, actin and myosin, function together to produce movement.arrow_forwardWhich of the following describes an F-actin microfilament? A flexible, helical filament composed of two strands assembled from G-actin 13 protofilaments composed of heterodimers with a hollow core a flexible filament composed of 13 interwoven protofilaments Eight tetramers twisted into a rope-like filamentarrow_forwardAddition of which of the following would increase the rate of actin depolymerization on the minus end of the filament by dissociating ADP-actin? Othymosin-b4 O cofilin O ATP-G-actin O profilin O Cap Zarrow_forward
- Define what is intermediate filament ?arrow_forwardcan microtubule replace actin filament？why or why not？arrow_forwardIn animal and yeast cells, it appears that these vesicles travel from the main cell body to the region where the new division is forming by moving along actin filaments. What type/family of motor protein might you expect to be associated with these vesicles to facilitate this transport? Briefly explain your reasoning.arrow_forward
- Name the cytoskeletal element (actin microfilaments, intermediate filaments, or microtubules) for each of the following.(a) give the cell its shape(b) resist tension placed on a cell(c) radiate from the centrosome(d) interact with myosin to produce contraction force(e) are the most stable(f) associated with kinesins and dyneins(g) associated with the motor protein myosinarrow_forwardIf the graph represents one actin filament, and line A represents dynamic activity at the plus end and line B represents dynamic activity at the minus end, which of the following must be true? Group of answer choices Formin proteins have been removed. Treadmilling is occurring at 1000 mM. CapZ proteins are not present. Nucleation is occurring at 100 mM.arrow_forwardDiscuss the following statement: “if plant cells contained intermediate filaments to provide the cells with tensile strength, their cell walls would be dispensable.”arrow_forward
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