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Compare and contrast the structure and function of the three components of the cytoskeleton: microtubules, intermediate filaments, and microfilaments.

Sagot :

MICROTUBULES

Structure: Hollow cylinders that are made up of repeating protein structure known as tubulin; thickest among the three

Functions: Provides rigidity, gives shape to many cells, major components of cilia and flagella, participates in the formation of a spindle during mitosis

INTERMEDIATE FILAMENTS

Structure: thicker than microfilaments and thinner than microtubules (in between among the three types of the cytoskeleton); protein composition is lamin, vimentin, and keratin

Functions: Forms the true skeleton of the cell, anchors the nucleus, and position it within the cell, giving elasticity to withstand tension,

MICROFILAMENTS

Structure: Protein composition of it is actin; thinnest among the three

Functions: Regulate cell shape, involve in some cell to cell or cell to matrix junctions, permits the movement of the specific cell through the formation of cytoplasmic extensions

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