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9. What is the cytoskeleton?​

Sagot :

HelperWarsidn

Answer:

The cytoskeleton is a network of protein filaments and tubules in the cytoplasm of a cell that provides structural support, shape, and facilitates movement and intracellular transport.

Adadieeeidn

The cytoskeleton is a complex network of protein fibers and filaments that provides structural support, shape, and organization to a cell. It also plays roles in intracellular transport, cell division, and cellular movement.

Characteristics of the Cytoskeleton

  • Dynamic and Flexible - The cytoskeleton is not a static structure; it continuously reorganizes and adjusts in response to the cell's needs and external signals.
  • Three Main Components - It is composed of three primary types of fibers: microfilaments (actin filaments), intermediate filaments, and microtubules. Each type has distinct functions and properties.
  • Structural Support - It maintains the cell's shape and mechanical strength, providing a scaffold that helps the cell resist deformation and pressure.
  • Intracellular Transport - The cytoskeleton facilitates the movement of organelles, vesicles, and other cellular materials through motor proteins like kinesins and dyneins that travel along microtubules.
  • Cell Division and Movement - It is essential for cell division (mitosis and meiosis), forming structures like the mitotic spindle, and for cellular movement, including changes in cell shape and migration.
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