If you compare plant and animal cells, you will discover differences. Plant cells are stiff and rigid. They have a(n) that protects the plant cell. Animal cells have only a thin outer covering called a(n) to protect them. Plant cells only have one or two holding bins called . Animal cells have many vacuoles. Plant cells have food factories called which animal cells don't have. Plant and animal cells also have other parts. Both have which are found in the center of the cells. They have a jellylike substance that fills the cells called . Both types of cells also have a part that uses fuel from food for energy. It's like the cell's .