any of various small particles in the cytoplasm of the cells of plants and some animals containing pigments or starch or oil or protein
造句
用作名詞(n.)
Because of their prokaryotic origin, bacterial cell division has been successfully used as a paradigm for plastid division. 原核起源的蛋白以及真核寄主起源的蛋白共同參與了質體的分裂過程。