The nuclear envelope is made up of two lipid bilayer membranes, an inner nuclear membrane and an outer nuclear membrane. These membranes are connected to each other by nuclear pores. The nuclear membrane, with its embedded nuclear pore complexes, acts as a selective barrier that regulates the movement of molecules, such as rna and proteins, between the nucleus and the Ò€¦

It separates the nucleoplasm (the fluid present in the nucleus), from the cytoplasm.