Parts of the Animal CellOnline version Animal Cell Organelle Identification by Tammy Fritz 1 ribosome 2 rough endoplasmic reticulum 3 nucleolus 4 mitochondria 5 golgi body 6 centrioles 7 lysosome 8 cell/plasma membrane 9 nucleus 10 cytoplasm 11 smooth endoplasmic reticulum 12 cytoskeleton 13 chromatin