Cell wall - Physical barrier that excludes certain substances and protects against mechanical damage and osmotic lysis, Capsule - Protects bacterium from other cells and helps groups of bateria stick together for further protection, Cell surface membrane - Acts as a differentially permeable layer, which controls the entry and exit of chemicals, Circular DNA - Possesses the genetic information for the replication of the bacterial cells, Plasmid - Possesses genes that may aid the survival of bacteria in adverse conditions.,

Role of structures found in a bacterial cell

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