That's not quite right! Cells are broadly categorized based on the presence of a nucleus, not a cell wall.

Here's the breakdown:

* Prokaryotic cells: These cells lack a true nucleus and other membrane-bound organelles. They have a cell wall, but it's structurally different from the cell wall of eukaryotic cells. Examples include bacteria and archaea.

* Eukaryotic cells: These cells have a true nucleus that contains their genetic material (DNA). They also have other membrane-bound organelles. Some eukaryotic cells have cell walls (like plants, fungi, and some protists), while others do not (like animals).

So, while cell walls are important features of certain cells, they are not the primary factor used to categorize cells into broad groups.