What is the primary function of mitosis in a cell?

The primary function of mitosis is to divide the nucleus into two genetically identical daughter nuclei. During mitosis, the replicated chromosomes are separated and distributed evenly into two new nuclei, ensuring that each daughter cell receives an exact copy of the parent cell's genetic material. This process is crucial for growth, tissue repair, and asexual reproduction in organisms.

Mitosis involves several distinct phases: prophase, metaphase, anaphase, and telophase, each playing a specific role in the organization and separation of chromosomes. By effectively duplicating and segregating the nucleus, mitosis allows for genetic continuity, which is fundamental for the proper functioning of cells in multicellular organisms.

In contrast, the other options presented involve processes that are not directly related to the function of mitosis. Producing energy, synthesizing proteins, and transporting materials across the cell membrane are vital cellular functions but occur independently of the mitotic process. Each of these activities involves different cellular mechanisms and structures that are not part of the mitotic cycle.