PPT-Lecture 7: the cytoskeleton and cell movement

Microtubules and intermediate filaments Dr Mamoun Ahram Faculty of Medicine Second year Second semester 20142014 Principles of Genetics and Molecular Biology Overview Second predominant component of cytoskeleton. . Burnside, Glenn, . Vanscoy. , White, Conrad. Actin. Filaments . Actin Filaments. Main Function: to help the contraction of cells . Found in: eukaryotic cells only. If Actin filaments were not present: myosin molecules would be scattered throughout the cell, and the cell would very disorganized and . Frank . Candre. Tommy Palm. Vidit. . Talati. Varun. Kumar. Eric Yi. Structure. Microtubules (Tubulin Polymer). Microfilaments (Actin Filaments). Intermediate Filaments. Function. Give mechanical support to the cell and maintain its shape. Network of Protein Filaments. Used in:. Structural Support. Cell Movement. Movement of Vesicles within Cells. Composed of three types of Cytoskeletal fibers. Actin Filaments. Microtubules. Intermediate Filaments. Continued……... http://www.northland.cc.mn.us/biology/biology1111/animations/flagellum.html. Microtubules and microfilaments. The Cytoskeleton. . الهيكل الخلو. ي. A network of fibres. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings. Eukaryotes. 3. Microtubules and microfilaments. The Cytoskeleton . الهيكل الخلو. ي. A network of fibres. . شبكة من الالياف. The cytoskeleton is a network of protein fibers within a cell, that crisscross the cytoplasm of all eukaryotic cells. The cytoskeleton is a very dynamic system that is constantly assembling and . dissembling. . biopsychosocial. , informed by systems theory, and various theories of therapy. .. . . www.adta.org/. Lora Wilson Mau, MA, BC-DMT. www.92Y.org. www.antioch.edu. www.octaband.com. www.disarmingtheplayground.com. By: Tim Yacoub and Lizette Magdaleno . Cytoskeleton Overview. Cytoskeleton is a “network of fibers that extend[s] throughout the cytoplasm,”(113). . It’s three structures: microtubules, microfilaments, and intermediate filaments. Organelles that Store, Clean up, and Support Organelles that store, clean up, and support Vacuoles, Vesicles, Lysosomes , and the Cytoskeleton Vacuoles are large saclike structures that store materials like CHROMOSOME AND CELL DIVISION Despite the diversity among cells, three basic features are common to all cell types. All cells have outer boundary, an interior substance and a control region. CELL STRUCTURE AND FUNCTION Unit 1: Cells and Proteins. Advanced Higher Biology. Miss Aitken. Structure and Function of the Cytoskeleton. The cytoskeleton is a network of fibres made from protein. It extends the whole way through the cytoplasm.. is a network of fibers composed of . proteins. contained within a . cell. 's . cytoplasm. . The cytoskeletal systems of different organisms are composed by . similar proteins. .. However, structure, function and dynamic behavior of the cytoskeleton can be very different, depending on . It is a dynamic structure that:. maintain cell shape. . has been known to protect the cell.. enables cellular motion.. play an important role in the movement of organelles and . intracytoplasmic. vesicles.. The ultrastructure of eukaryotic cells. Spec. Animal Cell Plant Cell. Starter. In pairs - Identify the main similarities and differences between animal and plant cells. Animals vs. Plants.