which of the following are found only in prokaryotic cells The Unique Structures Found Exclusively in Prokaryotic Cells

The Unique Structures Found Exclusively in Prokaryotic Cells

Prokaryotic cells are the smallest, simplest form of life and lack a nucleus or any other membrane-bound organelles. They are the most primitive and oldest form of cells and are found in bacteria, archaea, and other single-celled organisms. Though they are small and simple, prokaryotic cells possess structures that are unique to them and not found in eukaryotic cells. These include a cell wall, a cell membrane, ribosomes, and flagella. The cell wall is what gives the cell its shape and acts as a barrier to protect it from the environment. It is composed of peptidoglycan and provides prokaryotic cells with a degree of rigidity not found in eukaryotic cells. The cell membrane, or plasma membrane, acts as a barrier and allows the cell to control what enters and leaves. It is composed of a phospholipid bilayer with embedded proteins and is selectively permeable. Ribosomes are the structures responsible for protein synthesis and are composed of ribosomal RNA and proteins. They are smaller and simpler than those found in eukaryotic cells and lack a membrane. Flagella are whip-like structures that are used for locomotion and are composed of a single protein called flagellin. They are found in some species of prokaryotic cells, but not in eukaryotic cells. Cont….