N a section that will be a brief survey of the prokaryotic bacteria, you want to give an overview of the multiple groups of bacteria and representative bacteria within each group. The groupings have been developed based on many characteristics of the bacterial cells and attempt to group together different species with similar cellular characteristics. Cellular morphology, cell wall composition, and metabolism have historically been used as means to roughly group bacteria together into different classes and genera. Current technologies have been expanding and reorganizing these groupings based on lipid content and genomic characterizations.

Which of the following characteristics would NOT be used to aid in classifying a newly discovered bacterial species?
cellular size