Final answer:
The statement is false; the nuclear membrane is a double-membrane structure consisting of two phospholipid bilayers, unlike the single phospholipid bilayer of the plasma membrane.
Step-by-step explanation:
The statement that the nuclear membrane is a single layer of phospholipids is false. Unlike the plasma membrane, which is composed of a single phospholipid bilayer, the nuclear membrane or nuclear envelope is a double-membrane structure. It includes both an inner and an outer layer of phospholipid bilayers. The nuclear envelope encloses the nucleus and is punctuated with nuclear pores that regulate the exchange of substances such as RNA and proteins between the nucleoplasm and the cytoplasm. Additionally, the outer membrane of the nuclear envelope is continuous with the rough endoplasmic reticulum, making it a part of the endomembrane system.