【摘要】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, s
