Cells divide for two main reasons. One reason is that the DNA doesn’t grow as the cell grows. When the cell grows too big, the DNA wouldn’t be able to provide for the cell’s growth anymore. Second reason is that food, water and oxygen comes in the same way waste goes out. Think of it this way, the cell is a growing town and the town only has one way to go into and out of the town. If the town grows too big, the traffic gets so bad it seems like nothing is going in or going out. It’s like the carrying capacity of the cell, once it gets too big it wouldn’t be able to support itself, so it splits. That is why cells
