V2EX ubiquinone

Ubiquinone

释义 Definition

泛醌(又称辅酶Q,常见形式为辅酶Q10):一种脂溶性醌类分子,广泛存在于动植物与人体细胞的线粒体膜中,是电子传递链的重要载体,参与细胞能量(ATP)生成;在体内也与抗氧化过程有关。

发音 Pronunciation (IPA)

/jubkwnon/

例句 Examples

Ubiquinone helps transfer electrons in mitochondria.
泛醌帮助在线粒体中转移电子。

In aerobic respiration, ubiquinone shuttles electrons between complexes in the electron transport chain, supporting ATP production.
在有氧呼吸中,泛醌在电子传递链的不同复合体之间穿梭传递电子,从而支持ATP的生成。

词源 Etymology

ubiquinoneubiquitous(“无处不在的、普遍存在的”)与 quinone(“醌”)组合而成,字面意思是“普遍存在的醌”。之所以这样命名,是因为它在多种生物体与细胞组织中分布广泛。相关名称 coenzyme Q 中的 “Q” 也指其醌(quinone)结构。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)在电子传递链章节讨论泛醌/辅酶Q的电子载体作用。
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》)介绍线粒体呼吸链中 ubiquinone 的功能与移动性。
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)在能量代谢与氧化磷酸化内容中提及 ubiquinone/coenzyme Q。
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