1. The problem asks: What is the cellular process that enables cells to grow and multiply into tissue, such as bioprinted skin? 2. The key biological process involved in cell growth and multiplication is called "cell division." There are two main types: mitosis and meiosis. 3. Mitosis is the process by which a single cell divides to produce two identical daughter cells, allowing growth and tissue repair. 4. Meiosis is involved in producing gametes (sex cells) and is not responsible for tissue growth. 5. Since bioprinted skin requires cells to multiply and form tissue, the relevant process is mitosis. 6. Therefore, the cellular process that enables cells to grow and multiply into tissue is **mitosis**.