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nuclear envelope (核被膜)

名词解释题
2022-03-25 19:08
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正确答案

真核生物的细胞核的最外层结构,由两层单位膜所组成。
核被膜的结构比较复杂,它由外核膜、内核膜、核周腔、核孔复合物和核纤层等5个部分组成。外核膜与内核膜相连,表面附有大量的核糖体颗粒。内、外核膜间有15~30nm,的透明腔,称为核周腔,膜上有孔。


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nuclear envelope (核被膜)
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