V2EX plasmolysis

Plasmolysis

释义 Definition

质壁分离:植物细胞(或有细胞壁的细胞)处在高渗溶液中时,细胞失水,细胞膜(原生质体)从细胞壁内侧收缩并脱离的现象。常用于说明渗透作用与细胞的水分平衡。(该词多用于生物学语境。)

发音 Pronunciation (IPA)

/plzmlss/

例句 Examples

Plasmolysis happens when a plant cell loses water in a salty solution.
质壁分离会在植物细胞处于盐水等高渗溶液中失水时发生。

Under a microscope, the student observed plasmolysis as the protoplast pulled away from the cell wall after the tissue was placed in a hypertonic sucrose solution.
在显微镜下,学生看到组织放入高渗蔗糖溶液后,原生质体从细胞壁内侧缩回并发生质壁分离。

词源 Etymology

来自plasma(原生质、细胞质)+ -lysis(溶解、分离、破裂),字面含义可理解为“原生质的分离/解体”。该术语用于描述细胞失水导致原生质体与细胞壁分离的状态。

相关词 Related Words

文学/经典著作中的用例 Literary / Notable Works

  • Campbell Biology(《坎贝尔生物学》)
  • Taiz & Zeiger: Plant Physiology and Development(《植物生理学与发育》)
  • Raven & Johnson: Biology(《生物学》Raven & Johnson 等)
  • A Textbook of Plant Anatomy(《植物解剖学教材》类著作中常见该术语)
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