Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 2FTB
The three types of cytoskeleton fibers are _________, _____, and _______. Which of these supports cilia? Moves organelles? ____. Allows muscle contraction? ________.
Provides a supporting internal framework for the cell? ________.
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Which of these elements of the cytoskeleton is composed of tubulinand forms essential components of centrioles, spindle fibers, cilia,and flagella?a. actin filaments b. intermediate filaments c. microtubules
The cytoskeleton of a cell consists of all of the following, excepta. microtubules.b. actin fi laments.c. extracellular matrix.d. intermediate fi laments.
In addition to providing support, the cytoskeleton immobilizes enzymes and organelles in the cytoplasm. What advantage does this immobilization have over allowing the cellcontents to freely diffuse in the cytoplasm?
Chapter 4 Solutions
Biology: Life on Earth (11th Edition)
Ch. 4 - 1. Which of the following is/are found only in...Ch. 4 - Which of the following is not a function of the...Ch. 4 - Prob. 3MCCh. 4 - 4. Which of the following is not a location of...Ch. 4 - Which of the following statements is False?...Ch. 4 - The plasma membrane is composed of two major types...Ch. 4 - The three types of cytoskeleton fibers are...Ch. 4 - Prob. 3FTBCh. 4 - 4. Antibody proteins are synthesized on ribosomes...Ch. 4 - After each description, fill in the appropriate...
Ch. 4 - Two organelles that are believed to have evolved...Ch. 4 - 7. What structure in bacterial cells is composed...Ch. 4 - 1. What are the three principles of the cell...Ch. 4 - 2. Which cytoplasmic structures are common to both...Ch. 4 - Prob. 3RQCh. 4 - Describe the nucleus and the function of each of...Ch. 4 - What are the functions of mitochondria and...Ch. 4 - What is the function of ribosomes? Where in the...Ch. 4 - Describe the structure and function of the...Ch. 4 - 8. How are lysosomes formed? What is their...Ch. 4 - 9. Diagram the structure of eukaryotic cilia and...Ch. 4 - List the structures of bacterial cells that have...Ch. 4 - Prob. 1ACCh. 4 - Prob. 2ACCh. 4 - What problems would an enormous round cell...
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- In what ways do the functions of the cytoskeleton differ from those of the endomembrane system?arrow_forwardMatch each following organelle with its function: Select the INCORRECT match. a. Cytoskeleton/ Network of microtubulesand microfilaments b. RER/ Has sites for protein synthesis c. Nucleus/ Site of ribosome synthesis d. SER/ Contains enzymes for lipid synthesisarrow_forwardCilia and fl agella are involved ina. forming junctions between cells.b. establishing the extracellular matrix.c. cell-to-cell communication.d. cell movement.arrow_forward
- What are the differences between centrioles and cilia/flagella?arrow_forwardDescribe how cilia and flagella bend.arrow_forwardOrganelles compartmentalize a cell, much as a department store displays related items together. What advantage does such compartmentalization offer a large cell? Cite two examples of organelles and the activities they compartmentalize.arrow_forward
- In addition to providing support, the cytoskeleton immobilizes enzymes and moves organelles to suitable positions in the cytoplasm. What advantage do these circumstances have over allowing the cell contents to freely diffuse in the cytoplasm?arrow_forwardDescribe the three types of protein filaments that make up thecytoskeleton.arrow_forward"Without the cytoskeleton, the cell will not be able to perform any of its functions." Is there truth behind this claim? explainarrow_forward
- Cancer cells can eventually metastasize (or spread) from their tissue of organ to distant sites throughout the body. Which of the three types of cytoskeletal components could be used to detect the tissue of organ of a metastatic cancer cell? Why? (For example, if you took a biopsy of a tumor that had spread to the lungs, how could use what you know about the cytoskeleton to determine where the cancer originated? )arrow_forwardWhat are the similarities between centrioles and cilia/flagella?arrow_forwardWhat is the Description and Function of these organelles? Explain in 2-3 sentencesDescription:Function: a. Cell membrane b. Nucleus c. Mitochondria d. Lysosome e. Endoplasmic Reticulum f. Cytoskeleton g. Centrioles h. Ribosomes i. Golgi complexarrow_forward
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