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细菌对紫外线吸收最快的波长是

更新时间: 2021-04-12 02:47:31     

1、细菌对紫外线吸收最快的波长是254nm。

2、细菌中的脱氧核糖核酸(DNA),核糖核酸(RNA)和核蛋白的吸收紫外线的最强峰在254-257nm。.

3、细菌吸收紫外线后,引起DNA链断裂,造成核酸和蛋白的交联破裂,杀灭核酸的生物活性,致细菌死亡。

关键词: 细菌 紫外线 吸收 波长

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