What component(s) are present in all bacteria?

All bacteria have several key components: 1. Cell membrane: A lipid bilayer that controls the passage of materials into and out of the cell. 2. Cytoplasm: A gel-like substance containing enzymes, ribosomes, and the genetic material. 3. Ribosomes: Structures involved in protein synthesis. 4. Nucleoid: A region containing the bacterial chromosome (a single, circular DNA molecule). 5. Cell wall: Provides structural support and protection (in most bacteria, made of peptidoglycan). These structures are essential for bacterial survival, growth, and reproduction.