V2EX krebs-cycle

Krebs Cycle

释义 Definition

Krebs cycle(克雷布斯循环):细胞呼吸中的关键代谢途径,在线粒体基质中进行(原核生物在细胞质中进行),通过一系列反应把乙酰辅酶A逐步氧化成二氧化碳,并产生 NADH、FADHGTP/ATP,为后续的电子传递链提供能量载体。也常称为 Citric acid cycle(柠檬酸循环)TCA cycle(三羧酸循环)

发音 Pronunciation (IPA)

/krbz sakl/

词源 Etymology

“Krebs” 来自德国裔生化学家 Hans Adolf Krebs(汉斯阿道夫克雷布斯)的姓氏;他在 20 世纪 30 年代阐明了该循环的关键步骤,因此该代谢途径以其名命名。“cycle” 表示该途径的反应产物会再生起始受体分子,使过程呈循环式重复进行。

例句 Examples

The Krebs cycle happens in the mitochondria.
克雷布斯循环发生在线粒体中。

When oxygen is available, the cell uses the Krebs cycle to generate NADH and FADH, which then feed electrons into the electron transport chain to make ATP efficiently.
在有氧条件下,细胞通过克雷布斯环生成 NADH 和 FADH,随后它们把电子送入电子传递链,从而高效合成 ATP。

相关词 Related Words

文学与典籍 Literary Works

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Campbell Biology(《坎贝尔生物学》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》)
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