The Cytoskeleton is a Network of Fibers that Organizes Structures and Activities in the Cell - Edubirdie

University:
Binghamton University
Course:
BIOL 113 | Intro to Cell & Molecular Biol
Academic year:

2020
Views:

287

Pages:

6
Author:

esfredint7qo

The cytoskeleton is a network of elements. And just as the skeleton of an fibers that organizes structures and animal helps fix the positions of other body parts, the cytoskeleton provides anchorage activities in the cell for many organelles and even cytosolic In the early days of electron microscopy, enzyme molecules. The cytoskeleton is more biologists thought that the organelles of a dynamic than an animal skeleton, however. eukaryotic cell floated freely in the cytosol. It can be quickly dismantled in one part of But improvements in both light microscopy the cell and reassembled in a new location, and electron microscopy have revealed the changing the shape of the cell. cytoskeleton, a network of fibers extending throughout the cytoplasm. Bacterial cells also have fibers that form a type of cytoskeleton, constructed of proteins similar to eukaryotic ones, but here we will concentrate on eukaryotes. The eukaryotic cytoskeleton, which plays a major role in organizing the structures and activities of the cell, is composed of three types of molecular structures: microtubules, microfilaments, and intermediate filaments. Some types of cell motility (movement) also involve the cytoskeleton. The term cell motility includes both changes in cell location and movements of cell parts. Cell motility generally requires interaction of the cytoskeleton with motor proteins. There are many such examples: Cytoskeletal elements and motor proteins work together with plasma membrane molecules to allow whole cells to move along fibers outside the cell. Inside the cell, vesicles and other organelles Roles of the Cytoskeleton: Support and often use motor protein

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The Cytoskeleton is a Network of Fibers that Organizes Structures and Activities in the Cell

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