V2EX fatty acid

Fatty Acid

定义 Definition

脂肪酸:一种由长碳链和末端的羧基(-COOH)组成的有机酸,是脂肪、油脂和细胞膜的重要组成部分;可分为饱和脂肪酸不饱和脂肪酸等。(在化学与营养学中很常见)

发音 Pronunciation

/fti sd/

例句 Examples

I read that omega-3 is a healthy fatty acid.
我读到欧米伽-3是一种对健康有益的脂肪酸。

During digestion, enzymes break down fats into glycerol and fatty acids, which the body can absorb and use for energy or cell building.
在消化过程中,酶会把脂肪分解成甘油和脂肪酸,人体随后吸收它们,用于供能或构建细胞结构。

词源 Etymology

fatty 来自 fat(脂肪的),“-y”表示“具有……性质的”;acid 来自拉丁语 acidus(酸的)。合起来 fatty acid 直译为“脂肪性的酸”,指存在于脂肪/油脂中的一类酸性化合物,在现代生物化学与营养学语境中被固定用作术语。

相关词 Related Words

文学与著作 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)在脂质代谢、膜结构等章节中频繁出现 fatty acid
  • Biochemistry(Berg, Tymoczko & Stryer,《斯特赖尔生物化学》)讨论脂肪酸合成与β-氧化时大量使用该词。
  • Campbell Biology(《坎贝尔生物学》)在“脂类与细胞膜”“营养与能量”相关内容中出现该术语。
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