What are the three functions of microtubules?

1. Cell shape and structure: Microtubules help maintain the shape of cells and provide structural support.

2. Cell division: Microtubules play a crucial role in cell division by forming the mitotic spindle, which helps separate chromosomes during cell division.

3. Intracellular transport: Microtubules serve as tracks for motor proteins to transport organelles, vesicles, and other cellular components within the cell.

4. Cilia and flagella movement: Microtubules are the structural components of cilia and flagella, which are hair-like structures that help cells move and sense their environment.

5. Cell motility: Microtubules are involved in cell motility by providing structural support and facilitating the movement of cells.

6. Intracellular signaling: Microtubules can act as scaffolds for signaling molecules and play a role in intracellular signaling pathways.

7. Neuronal function: Microtubules are essential for neuronal function, as they help maintain the structure of axons and dendrites, and are involved in intracellular transport within neurons.

- Cell shape and support. Microtubules help to maintain the cell's shape and provide support for the cell membrane. They also help to organize the cell's organelles.
- Cell division. Microtubules form the spindle fibers that separate the chromosomes during cell division.
- Cell movement. Microtubules are involved in cell movement, both within the cell and in the extracellular environment. They are also involved in the movement of organelles within the cell.
- Cilia and flagella. Microtubules are the main structural components of cilia and flagella, which are used for cell movement.