animal cell anatomy diagram structure with all parts nucleus smooth rough endoplasmic reticulum cytoplasm golgi apparatus

all anatomical anatomy animal apparatus bacteria biology body cell cellular centrosome chart concept cross cytoplasm diagram education element endoplasmic figure function genetic golgi human illustration lab laboratory life medical membrane micro microbiology microscopic mitochondria mitochondrion molecule nature nucleus organ part particle parts physiology plant research reticulum ribosome rough school science scientific section smooth structure study