Question

Substance and structures associated with the nuclear envelopes internal and external surfaces

Answer 1

Substance and structures are associated with the nuclear envelopes. The outer nuclear membrane is continuous with the endoplasmic reticulum & the Inner membrane is associated with intermediate filament proteins called lamins to form the nuclear lamina.

• Nucleus:It is a double membranous organelle exclusive to eukaryotes.
• In between 2 lipid bilayers, a 20-50 nm wide perinuclear space is present.
• The nuclear envelope has a nuclear pore which is there to exchange the material between the cytoplasm & nucleus.