1. Microtubules:

* These are long, hollow cylinders made up of the protein tubulin.

* They are responsible for cell shape, movement of organelles, and cell division.

2. Microfilaments:

* These are thin, solid rods made up of the protein actin.

* They are involved in cell movement, muscle contraction, and cell division.

3. Intermediate filaments:

* These are rope-like fibers made up of various proteins, such as keratin, lamins, and vimentin.

* They provide structural support, maintain cell shape, and anchor organelles.

In addition to these primary components, there are also a variety of accessory proteins that interact with the cytoskeleton to regulate its assembly, disassembly, and function. These proteins include:

* Motor proteins: These proteins, such as dynein and kinesin, move along microtubules and microfilaments, carrying cargo or generating force.

* Cross-linking proteins: These proteins link together different cytoskeletal filaments, creating a more stable network.

* Capping proteins: These proteins bind to the ends of filaments, preventing them from growing or shrinking.

Overall, the cytoskeleton is a dynamic and complex network of biomolecules that plays a vital role in maintaining cell shape, movement, and function.