Final answer:
Option (true) The statement that all prokaryotic cells have a cell wall is generally true because most have a protective cell wall mainly composed of peptidoglycan, although some very rare exceptions exist.
Step-by-step explanation:
Do All Prokaryotic Cells Have a Cell Wall?
True or false: All prokaryotic cells have a cell wall. This statement is true as most prokaryotic cells indeed have a cell wall that is essential for maintaining cell shape, protecting against osmotic pressure, and conferring structural support. Prokaryotic cells, which include bacteria and archaea, have different compositions in their cell walls.
The cell wall of bacteria is notable for containing peptidoglycan, which is a complex molecule made up of sugars and amino acids. Nevertheless, not every single prokaryote has a cell wall; there are rare exceptions, such as the mycoplasmas, which lack a cell wall.
Within the realm of eukaryotes, many organisms also have cell walls, though they are structurally different from those of prokaryotes. Plant, fungal, and algal cell walls can be composed of various substances such as cellulose, chitin, and other polysaccharides. These structures provide similar functions in terms of protection, shape maintenance, and rigidity.