* Chromosomes: The nucleus contains the cell's chromosomes, which carry the genetic information (DNA) that needs to be duplicated and passed on to daughter cells during mitosis.
* Centrioles: In animal cells, the nucleus also houses the centrioles, which are responsible for organizing microtubules that form the spindle fibers during mitosis. These fibers help separate the chromosomes during cell division.
* Nuclear Envelope: The nuclear envelope surrounding the nucleus breaks down during mitosis, allowing the chromosomes to be accessed by the spindle fibers. This process is regulated by the nucleus.
While the nucleus is the main control center, it doesn't work alone. Other cellular components, like the cytoplasm and the proteins involved in the cell cycle, also play crucial roles in mitosis.
