Nucleus (cell biology)

The nucleus is a central, membrane-bound structure within a cell that acts as its control center. It contains most of the cell’s genetic material—in the form of DNA—guiding activities like growth, metabolism, and reproduction. The nucleus also assembles ribosomes, which are essential for protein production. Surrounded by the nuclear envelope, it maintains a regulated environment and communicates with the rest of the cell through nuclear pores. Essentially, the nucleus orchestrates the cell’s functions by storing and managing genetic information, ensuring proper development and response to the environment.