What are the similarities between cell membrane and nuclear membrane?

Cell membrane and nuclear membrane are two types of biological membranes present in eukaryotic cells. Both are essential for the survival of the cell. The cell membrane and nuclear membrane are both semi-permeable, made up of lipid bilayers, and have proteins in their structure. The main functions of both membranes include enclosing and protecting the various structures of the cell and regulating the passage of molecules.