This is nucleus. He is the ruler of the cell. You could say that he is the king of the cell. He sends out all of the commands and holds all of the instructions for making new cells. They call these instructions DNA

This is Endoplasmic Reticulum, he is kind of like a conveyor belt or mail system for the cell to help move things around. The whole cell relies on the Endoplasmic Reticulum to get the right materials and nutrients to all the parts of the cell.

This is the Golgi Body. Its like someone who packs up your packages so that you can get them in the mail without them being beat up. It packages the protein for the cell so that other parts can use that protein.

The Mitochondria is like the power plant of the cell and the cell is like a city. The mitochondria powers the cell by breaking down food for the cell.