Cytoskeleton

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Cytoskeleton

• Network of fibers
• Throughout the cytoplasm

Microtubules Microfilaments Intermediate filaments
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Functions - bones muscles of the cell

• 1. Internal skeleton or scaffold
• 2. Motion
• 3. Cell division

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Internal Skeleton or Scaffold

• Maintains shape
• Provides flexibility
• Anchors organelles

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Motion

• Moves pseudpods in Amoeba (microfilaments)
• Protoplasmic streaming in plants (microfilaments)
• Cilia and flagella (microtubules)

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Cellular motion requires

• Microtubule
• Motor molecule

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Microtubule structure
Alpha and beta tubulin
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Structure of Flagella
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Movement of flagella
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Cell Division - centrioles
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Microfilaments
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