Here's a breakdown:
* Microtubules: These are long, hollow cylinders made of the protein tubulin. They are essential for cell shape, movement, and intracellular transport.
* Spindle: During mitosis, the microtubules assemble into a structure called the spindle. The spindle fibers attach to the chromosomes at their centromeres and pull them apart, ensuring that each daughter cell receives a complete set of chromosomes.
The spindle has two main parts:
* Spindle fibers: These are the microtubules that extend from the poles of the cell to the chromosomes.
* Centrioles: These are small, cylindrical structures that are involved in organizing the microtubules of the spindle.
The spindle plays a crucial role in the process of cell division by ensuring that the chromosomes are distributed evenly between the two daughter cells. This ensures that each new cell has a complete set of genetic information.
