Prokaryotes lack organelles such as nucleoli, mitochondria, plastids, Golgi apparatus, and do not exhibit cyclosis. The atrophic glands hae scant cytoplasm and hyperchromatic nuclei with occasional punctate nucleoli. 原核生物无细胞器,如核仁、线粒体、质体、高尔基体等,不出现胞质环流。萎缩腺体内细胞的胞浆含量少,核浓染,偶尔可见斑点状核仁。