V2EX citric acid cycle

Citric Acid Cycle

释义 Definition

柠檬酸循环(又称三羧酸循环TCA 循环克雷布斯循环):细胞呼吸中的核心代谢途径,主要在线粒体(真核生物)或细胞质/细胞膜相关结构(部分原核生物)中进行,把乙酰辅酶A逐步氧化为二氧化碳,同时产生还原当量(如 NADH、FADH)和少量 ATP/GTP,为后续能量生成与生物合成提供原料与能量。

发音 Pronunciation (IPA)

/strk sd sakl/

例句 Examples

The citric acid cycle helps cells release energy from food.
柠檬酸循环帮助细胞从食物中释放能量。

In aerobic respiration, the citric acid cycle generates NADH and FADH that drive ATP production in the electron transport chain.
在有氧呼吸中,柠檬酸循环产生 NADH 和 FADH,它们在电子传递链中推动 ATP 的生成。

词源 Etymology

“Citric” 来自 citrate/柠檬酸盐(与柠檬中的柠檬酸相关),因为该循环的一个关键中间产物是柠檬酸(citrate/citric acid 相关);“cycle” 表示该途径的反应步骤首尾相接、不断循环。该循环也常以发现其关键步骤的生化学家 Hans Krebs 命名为 Krebs cycle

相关词 Related Words

文学作品中的用例 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)
  • Biochemistry (Berg, Tymoczko & Stryer)(《斯崔尔生物化学》)
  • Molecular Biology of the Cell (Alberts et al.)(《细胞的分子生物学》)
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