Roles of structures found in a bacterial cell 0.0 / 5 ? BiologyCellular processes and structureASAQA Created by: Antonia QuickCreated on: 09-01-13 10:07 Physical barrier that protects against mechanical damage and excludes certain substances Cell Wall 1 of 6 Protects bacterium from other cells and helps groups of bacteria to stick together for further protection Capsule 2 of 6 Acts as a differentially permeable layer which controls the entry and exit of chemicals Cell-surface membrane 3 of 6 Aids movement of bacterium because it's rigid, corkscrew shape and rotating base help the cell spin through fluids Flagellum 4 of 6 Possesses the genetic information for the replication of bacterial cells Circular DNA 5 of 6 Possessses genes that aid the survival of bacteria in adverse conditions e.g. produces enzymes which break down antibodies Plasmid 6 of 6
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