Which cell types have a cell wall? Plants, algae, fungi, bacteria and archaea all have cell walls, but the walls are made of different materials.
There are two distinct types of cells: prokaryotic cells and eukaryotic cells. Though the structures of prokaryotic and eukaryotic cells differ (see prokaryote, eukaryote), their molecular compositions and activities are very similar.
Most prokaryotic cells have a rigid cell wall that surrounds the plasma membrane and gives shape to the organism. In eukaryotes, vertebrates don't have a cell wall but plants do. The cell walls of prokaryotes differ chemically from the eukaryotic cell walls of plant cells, which are primarily made of cellulose.
All cells have a cell membrane, although there are slight variations. Some cells also have cell walls. While these cell walls provide additional protection and support, they do not replace the function of the cell membrane.