V2EX tca

TCA

释义 Definition

TCA 常指 tricarboxylic acid cycle(三羧酸循环),也叫 citric acid cycle / Krebs cycle(柠檬酸循环/克雷布斯循环):细胞在线粒体中把乙酰辅酶A逐步氧化,产生 NADH、FADH 并为合成 ATP 提供能量与中间代谢物的关键代谢途径。
(注:TCA 也可能在其他领域表示别的缩写,但在生物化学语境中最常见的是上述含义。)

发音 Pronunciation (IPA)

/ti si e/

例句 Examples

The TCA cycle helps cells release energy from food.
TCA 循环帮助细胞从食物中释放能量。

When oxygen is limited, changes in the TCA cycle can affect ATP production and many biosynthetic pathways.
当氧气不足时,TCA 循环的变化会影响 ATP 的生成以及多条生物合成途径。

词源 Etymology

TCA 是由 Tricarboxylic Acid(“三羧酸”)取首字母形成的缩写;之所以得名,是因为该循环的关键中间产物(如柠檬酸)含有三个羧基(-COOH)。

相关词 Related Words

文学与名著出处 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)
  • Campbell Biology(《坎贝尔生物学》)
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
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