The cytoskeleton is a complex network of protein filaments that provides structural support to cells, helps in cell movement, and facilitates intracellular transport. There are three main components:
Microfilaments (Actin Filaments): Composed of actin proteins, these thin filaments are involved in cell movement, shape determination, and muscle contraction. They form a dynamic framework near the cell's periphery.
Intermediate Filaments: Comprising various proteins like keratins and lamins, intermediate filaments provide mechanical strength to cells. They are especially important for maintaining cell and tissue integrity.
Microtubules: Built from tubulin proteins, microtubules are dynamic, hollow tubes. They play crucial roles in cell division (forming the mitotic spindle), maintaining cell shape, and serving as tracks for intracellular transport.
Overall, the cytoskeleton is a dynamic and adaptable framework essential for various cellular functions, including maintaining cell shape, supporting cellular movements, and facilitating the transport of organelles within the cell.
Негізгі бет |Cytoskeleton or Cytomusculature| Class| 11th| chapter |Cell structure and function |
Пікірлер: 7