Animal and plant cells are alike in that they are eukaryotic cells. This means that they contain organelles--structures within the cells to perform specific functions, as well as an organized nucleus containing DNA, the hereditary information of the cell. They share many of the same organelles located in the cytoplasm of the cell--mitochondria, ribosomes, endoplasmic reticulum, golgi apparatus, lysosome, vacuoles and nucleolus and cell membrane. However, the differences include--plant cells have an additional cell wall outside the cell membrane, which is non-living and supports and protects a plant cell. It also has chloroplasts, an organelle containing the green pigment chlorophyll, which is where photosynthesis occurs. The vacuoles in plant cells are much larger than those in the animal cell. Animal cells have the centrosome, which contains the centrioles--bundles of fibers necessary to help the animal cell divide during mitotic cell division. Plant lack the centrioles.