describe the characteristics of bacteria
General Characteristics of Bacterium. The following characteristics are common to most of the bacteria 1  â. Found everywhere, in all possible habitats. 2  These are basically unicellular but may live in association with other cells forming colonies. 3  The bacterial cell is delineated by a rigid cell wall.haracteristics of a Gram-positive bacterium are given below 1  â. The cell is made of two layers; the cell membrane and the cell wall (thick layer of peptidoglycan). 2  Thus, making the cell wall thick. 3  The amount of lipid is less in the cell wall, which retains the stain back in the cell.