What is Nuclear Membrane? - QS Study
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The transparent, semi-permeable and flexible membrane around the nucleus is said to be nuclear membrane.

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Structure: It is a porous and two layered membrane. It is made of lipoprotein. It disappears during the cell division.

Function:

i) This membrane separates the nucleoplasm from cytoplasm and gives nucleus a particular shape.

ii) It regulates the movement of different substances in between cytoplasm and nucleus.

iii) It helps in conducting different substances synthesized in nucleus to cytoplasm.

iv) It keeps the nucleus attached to endoplasmic reticulum.

v) It protects the nucleus