I compared a cell to a Walmart store. A cell has many parts that are similar to a Walmart For example a nucleus is like a customer service. A nucleus controls all cell activity. A customer service desk controls everything that goes on in the store. Next the Mitochondria makes energy for the cell. The stock people produce the products for the store. Then there is the cell membrane that separates the inside of a cell from the outside. The walls in a walmart do the same thing. Next the lysosome destroy bacteria. A security guard destroys shoplifters. Cytoplasm contains and supports organelles The shelves hold products up and contains them in a good way. Ribosomes produce protein for the cell. The Deli make food for the customers. DNA in a cell