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单词 TCA Cycle
释义

TCA Cycle

原声例句
WIL生活启示录

The pyruvate goes through the TCA cycle, produces a bunch of citrate, and that gets converted down to VLDL.

丙酮酸经过三羧酸循环,产生一堆柠檬酸盐,并且被转换成 VLDL。

WIL生活启示录

So A bunch of acetate comes in, goes through the TCA cycle and you're left with a ton of citrate.

所以一大堆乙酸盐进来,经过三梭循环,留给你一大堆柠檬酸盐。

Scishow 精选系列

The citric acid gets put into the citric acid cycle, also known as the TCA cycle, or the Krebs cycle... or just as that thing everybody hates memorizing for bio class.

柠檬酸进入柠檬酸循环,也称为 TCA 循环,或克雷布斯循环… … 就像生物课上每个人都讨厌记忆的东西一样。

WIL生活启示录

Pyruvate enters the mitochondria, Mitochondria is like the coal furnace of your cell because it converts the Pyruvate to Acetyl-CoA, then burns that in the TCA cycle to produce a bunch of energy in the form of ATP.

丙酮酸进入线粒体,线粒体就像是你的细胞的锅炉,它把丙酮酸转换成乙酰辅酶 A,然后在三梭循环中把它烧掉,以 ATP 的形式来产生一些能量。

中文百科

三羧酸循环 Citric acid cycle

(重定向自TCA Cycle)
三羧酸循环
Esquema didáctico del ciclo del ácido cítrico.

三羧酸循环(英语:tricarboxylic acid cycle, TCA cycle)——又称柠檬酸循环(citric acid cycle)摩天轮循环 (ferris wheel)克雷布斯循环Krebs cycle,简称克氏循环)——是需氧生物体内普遍存在的代谢途径,因为在这个循环中几个主要的中间代谢物是含有三个羧基的柠檬酸,因此得名;或者以发现者克雷布斯命名。三羧酸循环是三大营养素(糖类、脂类、蛋白质)的最终代谢通路,又是糖类、脂类、蛋白质代谢联系的枢纽。

在三羧酸循环中,反应物葡萄糖或者脂肪酸会变成乙酰辅酶A。这种「活化醋酸」(一分子辅酶和一个乙酰基相连),会在循环中分解生成最终产物二氧化碳并脱氢,质子将传递给辅酶烟酰胺腺嘌呤二核苷酸(NAD)和黄素腺嘌呤(FAD),使之成为NADH + H和FADH2。NADH + H和FADH2会继续在呼吸链中被氧化成NAD和FAD,并生成水。这种受调节的「燃烧」会生成ATP,提供能量。

英语百科

Citric acid cycle 三羧酸循环

(重定向自TCA Cycle)
Overview of the citric acid cycle (click to enlarge)
Structural diagram of acetyl-CoA. The portion in blue, on the left, is the acetyl group; the portion in black is coenzyme A.



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The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of guanosine triphosphate (GTP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.

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更新时间:2025/6/17 18:53:14