精选优质文档-倾情为你奉上第一课Cytoplasm: The Dynamic, Mobile Factory细胞质：动力工厂Most of the properties we associate with life are properties of the cytoplasm.Much of the mass of a cell consists of this semifluid substance, which is bounded on the outside by the plasma membrane.Organelles are suspended within it, supported by the filamentous network of the cytoskeleton.Dissolved in the cytoplasmic fluid are nutrients, ions, soluble proteins, and other materials needed for cell functioning.生命的大部分特征
