Question

Allow exechang of substance between nucleos and cytoplasm

Answer 1

Answer:

The nuclear envelope separates the contents of the nucleus from the cytoplasm and provides the structural framework of the nucleus. ... The sole channels through the nuclear envelope are provided by the nuclear pore complexes, which allow the regulated exchange of molecules between the nucleus and cytoplasm.

Answer 2

Answer:

The nuclear envelope separate is the contents of the nucleus from the cytoplasm and provide the structural framework of the nucleus. The sole channel through the nuclear envelope are provided by the nuclear pore complex.