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MIRCOTUBULES & MIRCOFILAMETS

MIRCOTUBULES & MIRCOFILAMETS. Megan B ennett & R obert D ickson. MICROFILAMENTS. - Help support shape - Range from 5 to 9 nm in diameter - Common to all eukaryotic cells - Polymers of actin. What are these used for.

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MIRCOTUBULES & MIRCOFILAMETS

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  1. MIRCOTUBULES & MIRCOFILAMETS Megan Bennett & Robert Dickson

  2. MICROFILAMENTS - Help support shape - Range from 5 to 9 nm in diameter - Common to all eukaryotic cells - Polymers of actin

  3. What are these used for http://www.wiley.com/college/pratt/0471393878/student/animations/actin_myosin/actin_myosin.swf Activity with microfilaments and microtubules -They are used to support the shape -They are very flexible and versatile -They are the thinnest filaments in the cytoplasm

  4. MICROTUBULES • Fibrous tubes • “conveyer belts” • in the cytoplasm

  5. What Are they Used For? • http://www.youtube.com/watch?v=2-L-Ts6fsks Video on movement of organelles in microtubules http://www.youtube.com/watch?v=JMAg_PwSMjA&feature=related Video on microtubules in mitosis Extremely important in mitosis Cell shape transportation

  6. Differences between microtubules & microfilaments

  7. How cell would function without it? • Cells would not be able to divide through mitosis • Cells would be unable to transport some organelles and chromosomes • Nothing to hold the shape together

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