acetyl-CoA的音標是["?s?t?l k???? ??]，翻譯為乙酰輔酶A。速記技巧是記住其結構特征，即一個乙酰基（CH3-C=O）連接一個輔酶A（CoA）。

Acetyl-CoA的英文詞源是來自希臘語和拉丁語，其中acetyl來自于acetic（乙酸的）和co-（共同）的組合，而CoA則來自于英語中的輔酶A（coenzyme A）。

變化形式：酯基的乙酰化（Acetylation）是生物化學中常見的一種修飾，可以發生在許多蛋白質、核酸和糖類等生物大分子上。

相關單詞：Acetylcholine乙酰膽堿，一種神經遞質，在神經肌肉接合處釋放，參與肌肉運動；Acetylator乙酰化酶是一種基因，編碼能夠催化蛋白質的乙酰化反應的酶。此外，Acetyl-CoA還可以衍生出許多其他單詞，如乙酰輔酶A（Acetyl CoA），它是生物體內一種重要的能量中間體，參與許多代謝途徑。

總的來說，Acetyl-CoA在生物化學中扮演著重要的角色，是許多代謝途徑的起點，也是許多生物化學反應的中間產物。

常用短語：

1. acetyl-CoA合成酶

2. acetyl-CoA羧化酶

3. acetyl-CoA酯酶

4. acetyl-CoA氧化酶

5. acetyl-CoA合成反應

6. acetyl-CoA轉移酶

7. acetyl-CoA激酶

雙語例句：

1. The enzyme acetyl-CoA carboxylase plays a crucial role in fat metabolism. (乙酰-CoA羧化酶在脂肪代謝中起著至關重要的作用。)

2. The oxidation of pyruvate to acetyl-CoA is a crucial step in the citric acid cycle. (丙酮酸氧化為乙酰-CoA是檸檬酸循環中的一個關鍵步驟。)

3. Acetyl-CoA kinase catalyzes the conversion of acetyl-CoA to acetyl phosphate. (乙酰-CoA激酶催化乙酰-CoA轉化為乙酰磷酸。)

4. Acetyl-CoA is a precursor of fatty acid synthesis. (乙酰-CoA是脂肪酸合成的前體。)

5. The conversion of glucose to pyruvate and then to acetyl-CoA is a key step in cellular respiration. (葡萄糖轉化為丙酮酸，再轉化為乙酰-CoA是細胞呼吸中的一個關鍵步驟。)

6. Acetyl-CoA is a central intermediate in the citric acid cycle and is also involved in fatty acid synthesis and cholesterol synthesis. (乙酰-CoA是檸檬酸循環中的一個中心中間產物，還參與脂肪酸合成和膽固醇合成。)

7. The production of acetyl-CoA from pyruvate is an important process in the production of energy in the body. (從丙酮酸產生乙酰-CoA是體內能量產生的一個重要過程。)

英文小作文：

The chemical compound acetyl-CoA plays a vital role in cellular metabolism, acting as a central intermediate in numerous biochemical reactions. It is produced through a series of complex reactions, starting from glucose, pyruvate, and other substrates, and it serves as a precursor for the synthesis of fatty acids, cholesterol, and other biomolecules. Acetyl-CoA is also involved in energy production through its conversion to ATP, the universal energy currency of the cell.

Moreover, acetyl-CoA is central to the citric acid cycle, a series of chemical reactions that generate energy and regulate cellular metabolism. Through this cycle, cells are able to convert nutrients into energy and other essential biomolecules, ensuring their survival and growth. Understanding the role of acetyl-CoA in cellular metabolism is crucial for understanding human health and disease, as well as for developing effective therapeutic strategies.