The correct statement is: Prokaryotic cells lack membrane-bound organelles, whereas eukaryotic cells have membrane-bound organelles.
To clarify the incorrect statements:
- Eukaryotic cells do have ribosomes, as do prokaryotic cells.
- Eukaryotic cells are generally larger than prokaryotic cells.
- Prokaryotic cells do not contain a nucleus; instead, they have a nucleoid region where their genetic material is located, while eukaryotic cells do contain a nucleus.