Question

why does nuclear membrane have pores​

Answer 1

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Here's ur answer....

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Anything that needs to pass between the nucleoplasm and the cytoplasm can only do so through holes in the membrane called nuclear pores. Nuclear pores only allow very small molecules, ions, or proteins to freely move into or out of the nucleus.

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Answer 2

for osmosis and diffusion of substances

Cell membrane is a membrane that encloses the contents of the cell

cell membrane has small pores that allows for the passage of small ions through the cytoplasm and the nucleoplasm.

The pores are called the nuclear pores. Nuclear pores are selective and only allow for specific small ions to pass through the pores

The pores allow for free passage of protein molecules