活细胞内合成酶的原料是:(    ) A.脂肪酸          B.核苷酸 

活细胞内合成酶的原料是:(    )

A.脂肪酸          B.核苷酸         C.氨基酸          D.氨基酸或核苷酸

 

答案

D

酶的化学本质是蛋白质和核酸,其组成单位为氨基酸或核苷酸。

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