V2EX citric acid cycle

Citric Acid Cycle

定义 Definition

n. phr. 生物化学中指一组循环进行的酶促反应,用来氧化乙酰辅酶 A,并把能量转移到 NADH、FADH2 和 GTP 或 ATP 等分子中。它通常发生在真核细胞的线粒体基质中,在许多细菌中则发生在细胞质或相关膜系统附近。该循环是细胞呼吸的核心环节,连接糖、脂肪和部分氨基酸的分解代谢。

发音 Pronunciation

/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 biochemistry, the citric acid cycle is often studied together with glycolysis and oxidative phosphorylation.
在生物化学中,柠檬酸循环常常与糖酵解和氧化磷酸化一起学习。

词源 Etymology

Citric 来自拉丁语 citrus,与柑橘类水果有关,因为柠檬酸最早以其在柑橘中的存在而得名。Acid 源自拉丁语 acidus,意为“酸的”。Cycle 来自希腊语 kyklos,意为“圆圈、循环”,表示这一代谢途径中的反应会循环再生关键中间体。

相关词 Related Words

科学文献用例 Scientific Usage

  • 常见于生物化学教材中,用于解释细胞呼吸、能量代谢和中间代谢途径。
  • 常见于细胞生物学和分子生物学课程材料中,用来说明线粒体功能。
  • 在代谢组学和生理学研究中,常用于讨论碳流、能量状态和代谢调控。
  • 在医学和营养学专业语境中,常用于解释人体如何从糖类、脂肪和氨基酸中获取能量。
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