Assertion: nucleus's membrane | /r/LocatedNear | organelle
Facets:
Source sentences:
text: There are also occasional exceptions to the number of membranes surrounding organelles, listed in the tables below (e.g., some that are listed as double-membrane are sometimes found with single or triple membranes).
text: Because the membranes that surrounds organelles restricts the passage of proteins, organelles have evolved different mechanisms for importing proteins from the cytoplasm.