A kingdom or large grouping that comprises mostly single-celled organisms such as the protozoa, simple algae and fungi, slime molds, and (formerly) the bacteria.
Usually, Protists lack a cell wall. However, some protists have a cell wall.
These single-celled entities move with the help of flagella, cilia or amoeboid modes.
Final answer: Protists lack a cell wall, however, some protists have a cell wall.