It is as long, as a fine human hair is thick. Borreli burgdorferi is a highly motile bacteria, it can swim extremely efficiently through both blood and tissue because of internal propulsion. It is propelled by an internal arrangement of flagella, bundled together, that runs the length of the bacteria from tip to tip. Like other Borrelia bacteria Borrelia burgdorferi has a three layer cell wall which helps determine the spiral shape of the bacteria. This extra layer is sometimes called the Slime Layer or S-layer.
Most bacteria have distinct chromosomes that are found floating around inside the cytoplasm.
When the bacteria starts to divide and split in two, the chromosomes divide and the new copies of the chromosomes enter the new cell. The arrangement of DNA within Borrelia burgdorferi is radically different. It is arranged along the inside of the inner membrane. It looks something like a net embedded just underneath the skin of the bacteria. A nother unique feature to Borrelia burgdorferi are Blebs.