英语翻译Inside the Living Cell :Structure and Function of Internal cell parts1.Cytoplasm:The Dynamic,Mobile FactoryMost of the properties we associate with life are properties of the cytoplasm.Must of the mass of a cell consists of this semifluid
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英语翻译Inside the Living Cell :Structure and Function of Internal cell parts1.Cytoplasm:The Dynamic,Mobile FactoryMost of the properties we associate with life are properties of the cytoplasm.Must of the mass of a cell consists of this semifluid
英语翻译
Inside the Living Cell :Structure and Function of Internal cell parts
1.Cytoplasm:The Dynamic,Mobile Factory
Most of the properties we associate with life are properties of the cytoplasm.Must 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 netwok of the cytoskeleton.Dissolved in the cytoplasmic fluid are nutrients,ions,soluble proteins,and other materials needed for cell functioning.
2.the nucleus:information central
the eukaryotic cell nucleus is the largest organelle and houses the genetic material on chromosomes.(in prokaryotes the hereditary material is found in the nucleoid.) the nucleus also cantains one or two organelles-the nucleoli-that play a role in cell division.A pore-perforated sac called the nuclear envelop separates the nucleus and its contents from the cytoplasm.Small molecules can pass through the nuclear envelope,but larger molecules such as mRNA and ribosomes must enter and exit via the pores.
3.organelles:specialized work units
all eukaryotic cells contain most of the various kinds of organelles,and each organell performs a specialized function in the cell.Organelles described in this section include ribosomes,the endoplasmic reticulum,
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英语翻译Inside the Living Cell :Structure and Function of Internal cell parts1.Cytoplasm:The Dynamic,Mobile FactoryMost of the properties we associate with life are properties of the cytoplasm.Must of the mass of a cell consists of this semifluid
在生存细胞里面:内部细胞零件的结构和作用
1.细胞质:动态,流动工厂我们联系生活物产的Most是细胞质的物产.细胞的大量的必需包括这种半液体物质,在外部一定由质膜.细胞器在它里面暂停,支持由细胞骨架的纤维状netwok.在细胞质流体被溶化营养素、离子、可溶解蛋白质和为细胞起作用需要的其他材料.
2.中坚力量:信息中央
the 真核状态的细胞核是最大的细胞器并且安置在染色体的基因.(在原核生物遗传性材料在类核小体被找到.)也中坚力量cantains一两个细胞器这细胞核戏剧在细胞分裂的一个角色.称核的毛孔穿孔的囊包围从细胞质分离中坚力量和它的内容.小分子可能穿过核信封,但是更大的分子例如mRNA和核糖体必须通过毛孔输入和退出.3.细胞器:专业工作单位
all真核状态的细胞包含大多这各种各样的细胞器,并且每organell在细胞执行一个专业作用.在这个部分描述的细胞器包括核糖体,内质蜂巢胃.