V2EX endocytosis

Endocytosis

定义 Definition

内吞作用:细胞通过细胞膜向内凹陷并形成囊泡,把外界物质(如营养物、信号分子或微生物)包裹并运输进入细胞的一种过程。(此外还有更具体类型,如吞噬作用和胞饮作用。)

发音 Pronunciation (IPA)

/n.do.sato.ss/

例句 Examples

Endocytosis helps cells take in nutrients.
内吞作用帮助细胞摄取营养物质。

Receptor-mediated endocytosis allows the cell to selectively import specific molecules, such as LDL cholesterol, by binding them at the membrane before internalization.
受体介导的内吞作用使细胞能够选择性地导入特定分子(如低密度脂蛋白胆固醇),先在细胞膜上结合,再将其内化进入细胞。

词源 Etymology

endocytosis 源自科学拉丁/新希腊词根:**endo-**(“内部、向内”)+ **cyto-**(“细胞”)+ -osis(表示“过程、状态”)。字面意思就是“向细胞内部的过程”,用于描述细胞“把外界东西带进来”的机制。

相关词 Related Words

文学作品中的用例 Literary Works

  • Molecular Biology of the Cell(Alberts 等):在讲解膜运输与细胞摄取机制时大量讨论 endocytosis
  • Lehninger Principles of Biochemistry(Nelson & Cox):在细胞膜、囊泡运输与受体介导摄取相关章节中出现 endocytosis
  • Campbell Biology(Urry 等):在细胞结构与膜运输(包括内吞/外排)部分使用 endocytosis
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