Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 13.4CC
In which of the following cells would you expect to find extensive intermediate filament networks? For each cell type, explain your answer, based on the “lifestyle” of each cell type. Cell types: human epidermis (skin); plant leaf epidermis; snake intestinal smooth muscle cell; sea urchin sperm cell.
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What is not a similarity between motility of cilia/flagella and skeletal muscle?
Group of answer choices:
Both have cytoskeletal fibers arranged in a ring pattern
Both involve motor proteins connected to a cytoskeleton "track"
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Both require ATP hydrolysis
There are three major classes of filaments that make up the cytoskeleton. What are they, and what are the differences in their functions? Which cytoskeletal filaments would be most plentiful in a muscle cell or in an epidermal cell making up the outer layer of the skin? explain your answers.
Please explain how an intermediate filament is similar and different in a normal skin cell while in a dry skin cell, dividing cell and normal skin tissue
Chapter 13 Solutions
Becker's World of the Cell (9th Edition)
Ch. 13 - Cytoskeletal polymers are modular, and their...Ch. 13 - How could you use paclitaxel, which makes MTs less...Ch. 13 - The amount of dynamic instability exhibited by...Ch. 13 - Prob. 13.3CCCh. 13 - In which of the following cells would you expect...Ch. 13 - Filaments and Tubules. Indicate whether each of...Ch. 13 - True or False. Identify each of the following...Ch. 13 - Prob. 13.3PSCh. 13 - Stabilization and the Critical Concentration....Ch. 13 - Prob. 13.5PS
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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
- Match each term to the phrase that describes it best. Cell fiber that can be found in muscle cells a. Primary cilium Largest of the cell fibers; act like "engines" for the cell b. Microfilaments c. Gap junctions d. Centrosomes e. Microtubules f. Cilia g. Intermediate filaments h. Microvilli i. Flagella j. Desmosomes k. Centrioles I. Tight junctionsarrow_forwardBelow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a. Keratin - an intermediate filament, is classified as Types I and II or acid and base keratins. b. Microfilaments have two structures called bundles and networks. The former is used for movement inside the cell while the latter is for intercellular communication. c. Kinesin is a microtubule motor protein that helps in the transportation of cellular material essential to cell function and moves towards the minus end motor. Clear my choicearrow_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
- Put the following in order of size from smallest to largest microtubules sarcomere intermediate filaments microfilaments dynienarrow_forwardProteins can be described as being either globular or fibrous in shape. Fibrous proteins O are an indigestible but important source of fiber in the diet are the subunits for microtubules. are made of globular proteins that link together to form long fibers are the subunits for intermediate filaments.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_forward
- The protein collagen is manufactured and secreted by skin cells. Collagen provides strength and elasticity between cells. What would be the result if during the manufacture of collagen, there was a defect in its ER signal? (Select all) Question 8 options: The primary structure would never get completed. The primary structure would get completed but the secondary and tertiary structures would not be completed. The malformed collagen would end up exiting the cell. The malformed collagen would end up in the cytoplasm. The malformed collagen would end up in a vesicle.arrow_forwardList the structure features find common in Elodea (plant cell) and Cheek cell (simple squamous epithelium)arrow_forwardGive two examples of biological functions that are enabled by microfilaments or microtubules together with associated motor proteins.These could be whole cell functions or functions within the cell.arrow_forward
- Match each term to the phrase that describes it best. Cell fiber that can be found in muscle cells a. Primary cilium e. vLargest of the cell fibers; act like "engines" for the cell b. Microfilaments C. Gap junctions d. Centrosomes e. Microtubules f. Cilia g. Intermediate filaments h. Microvilli i. Flagella j. Desmosomes k. Centrioles 1. Tight junctionsarrow_forwardYou’re having a discussion with a colleague who insists that intermediate filaments, IFs, provide very little mechanical strength to cells. How can you rebut this and provide quantitative, experimental evidence to measure the strength of an intermediate filament using microscopy?arrow_forwardA 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.arrow_forward
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