Which organelle is not found in prokaryotic cells?

Prokaryotic cells, which include bacteria and archaea, are characterized by their simplicity and lack of membrane-bound organelles. One of the key distinctions between prokaryotic and eukaryotic cells is the absence of a nucleus in prokaryotes. Instead of being enclosed within a nucleus, the genetic material in prokaryotic cells is located in a region called the nucleoid, which is not separated from the rest of the cell by a membrane.

In contrast, eukaryotic cells possess a nucleus, which houses the cell's DNA and is surrounded by a double membrane. The presence of this membrane-bound nucleus is what defines eukaryotic cells and differentiates them from prokaryotic ones.

Other organelles mentioned, such as ribosomes, cell walls, and plasma membranes, are present in prokaryotic cells. Ribosomes, although smaller than those found in eukaryotic cells, are essential for protein synthesis and are found in both cell types. The cell wall, which provides structural support and protection, is a common feature of prokaryotic cells, particularly in bacteria. Additionally, all cells, including prokaryotes, have a plasma membrane that regulates the movement of substances in and