Which structures perform the function of mitochondria in bacteria?

The genetic material of a prokaryotic cell is known as

Choose the wrong statements regarding bacterial cell.
$(i)$ Glycocalyx is the outermost envelope in bacteria.
$(ii)$ The glycocalyx could be a loose sheath called capsule.
$(iii)$ The glycocalyx may be thick and tough called slime layer.
$(iv)$ $A$ special structure formed by the plasma membrane is called mesosome.
$(v)$ Small bristle like fibres sprouting out of the cell are called fimbriae.

What is the small,circular,extrachromosomal $DNA$ molecule found in a bacterial cell,separate from the main genomic $DNA$?

Cell division in prokaryotic cells is ........... compared to cell division in eukaryotic cells.

The absence of which of the following results in the absence of a true chromosome in prokaryotes?