Describe the 3 major components of the cytoskeletal system including the proteins that comprise the different members. Describe in detail desmosome; hemidesmosome; gap junction; and tight junction. You must include the cytoskeletal components and include any accessory proteins, where they can be found, and how they help a multicellular organism.

Describe the 3 major components of the cytoskeletal system including the proteins that comprise the different members. Describe in detail desmosome; hemidesmosome; gap junction; and tight junction. You must include the cytoskeletal components and include any accessory proteins, where they can be found, and how they help a multicellular organism.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter2: Cell Physiology

Section: Chapter Questions

Problem 11RE

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Similar questions

In the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.
Which of the following is a correct match between a cytoskeletal element and its function? Select one: A. microtubules and chromosome movement B. microfilaments and flagellar motility C. microtubules and cleavage furrow formation D. intermediate filaments and cytoplasmic streaming E. microfilaments and intracellular vesicle transport
Identify the cytoskeletal element being described in each statement below. Note, possible answers include: Microtubules only Microfilaments only Intermediate filaments only Microtubules AND microfilaments All 3
Which of the following statements applies to all three major classes of cytoskeletal polymers (microtubules, actin filaments and intermediate filaments)? They have intrinsic polarity They assemble from protein subunits synthesized on free polyribosomes They add subunits only at their ends They are involved in cell motility Their constituent proteins are tissue specific
Three systems of cytoskeletal filaments exist in most eukaryotic cells. Compare them in terms of composition, function, and structure.
Which of the following statements regarding cytoskeletal filaments is FALSE? Microtubules will rapidly disassemble in response to a drop in the ATP concentration. G-actin monomers and alpha-tubulin/beta-tubulin dimers assemble into filaments in their ATP-bound and GTP-bound forms, respectively. Microtubules are stabilized by microtubule-binding proteins, such as Tau. Actin-binding proteins allow F-actin to assemble in cells in many different ways. Hydrolysis of ATP and GTP changes the conformation of the subunits once they are incorporated into actin filaments and microtubules, respectively.
Which of the following is a feature common to all three components of the cytoskeleton? a. They all serve to scaffold the organelles within the cell. b. They are all characterized by roughly the same diameter. c. They are all polymers of protein subunits. d. They all help the cell resist compression and tension.
Which type of cytoskeletal element is characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits? a) microfilamentsb) microtubulesc) intermediate filamentsd) all of these choicese) minitubules
Contrast the structure and functions of the cytoskeleton with thestructure and functions of the membranous components of the cell.
There are three components of the cytoskeleton that vary in size. The correct order of these components in order of smallest to largest is . Group of answer choices Microtubules, Intermediate Filaments, Microfilaments Microfilaments, Intermediate Filaments, Microtubules Microfilaments, Microtubules, Intermediate Filaments None of the Above
Describe the following as seen under the compound microscope. Endoplasmic reticulum Ribosome Centrosome
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?