V2EX phospholipid

Phospholipid

定义 Definition

磷脂,一类含有磷酸基团的脂质分子,是构成细胞膜的主要成分。磷脂分子具有亲水头部和疏水尾部,能在水中自发形成双分子层结构。

发音 Pronunciation

/fs.flp.d/(英式) /fs.folp.d/(美式)

例句 Examples

Phospholipids form the basic structure of cell membranes.
磷脂构成了细胞膜的基本结构。

Because each phospholipid molecule has both a hydrophilic head and a hydrophobic tail, they naturally arrange themselves into a bilayer when placed in an aqueous environment.
由于每个磷脂分子同时具有亲水头部和疏水尾部,当它们被置于水环境中时,会自然排列成双分子层。

词源 Etymology

该词由两个希腊语词根组合而成:phospho- 来自希腊语 phōsphoros,意为"带来光的",因为磷元素在空气中会发光,后引申为与磷相关的化学前缀;lipid 来自希腊语 lipos,意为"脂肪"。合在一起即"含磷的脂肪",准确描述了这类分子的化学本质。该术语在20世纪初随着生物化学的发展而被广泛使用。

相关词汇 Related Words

文学与学术引用 Notable References

  • 在阿尔伯特等人所著的经典教材《Molecular Biology of the Cell》(《细胞分子生物学》)中,磷脂作为细胞膜结构的核心概念被详细阐述,是理解细胞生物学的基础。
  • 在辛格和尼科尔森1972年发表的里程碑式论文中提出的流动镶嵌模型(Fluid Mosaic Model)中,phospholipid bilayer 被描述为细胞膜的基本骨架,这一理论至今仍是生物学的核心概念。
  • 尼克莱恩(Nick Lane)的科普著作《The Vital Question》(《生命之源》)中探讨了磷脂在生命起源中的关键角色。
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