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Hello students, the question asked is compare the characteristics and functions of microfilaments, microtubules, and intermediate filaments.
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The microfilaments, the characteristics of microfilaments include they are made of actin protein and they are the smallest in diameter which is 6 to 8 nanometer and they are flexible and they are polar.
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Regarding their function, they are involved in cell movements, muscle contraction, cell division, in cytokinesis especially, cell shape maintenance, and intracellular transport.
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The second one which is the microtubules, regarding their structure, sorry characteristics, they are made of tubulin protein, they have a larger diameter which is 25 nanometers, they are rigid and polar.
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And regarding their functions, they are involved in cell shape maintenance, intracellular transport, cell division during the mitotic spindle formation, and cilia and flagella movement.
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Another one, intermediate filaments, regarding their characteristics, they are made of various proteins, for example, keratin, keratins, vimentins, lamins, and they are intermediate diameter which is 10 nanometers.
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They are flexible, non -polar.
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Regarding their functions, they help in cell shape maintenance, they give mechanical strength to the cell, they help in anchoring of organelles and nucleus.
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Another question asked is compare the structure and dynamic properties of microtubules versus actin filaments and how these properties contribute to the different functions of these polymorphous cells...