合成代谢(anabolism)
关键词: 合成代谢 anabolism来源: 互联网
亦称生物合成。指把小的前体物质(如α-酮酸等),或基本结构单位(如氨基酸、单糖、脂肪酸等)分子转化成大分子细胞组分(如蛋白质、核酸等)的过程,故又称同化作用。由于合成代谢能使物质的大小及结构的复杂性增加,因而需要通过ATP降解成ADP及磷酸提供自由能。某些细胞组分的生物合成还需要由NADPH提供高能氢原子。
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