Assertion: centriole's structure | /r/HasProperty | nuclear envelope
Facets:
Source sentences:
text: The structure of the nucleus is described below: Nuclear envelope: two lipid membranes that are studded with special proteins that separates the nucleus and its contents from the cytoplasm.
text: : This closeup of a cell nucleus shows that it is surrounded by a structure called the nuclear envelope, which contains tiny perforations, or pores.