First, mitosis is a eukaryotic process where not only genome replication and cell division is involved but quite a few more processes, not the least because there is a nucleus in eukaryotes. Bacteria simply divide after replication. And yes, even the simplest bacteria (and even some symbionts) use ribosomes for protein production. Example:
The smallest bacteria are from species Mycoplasma. The Mycoplasma species with the smallest annotated proteome on UniProt is Mycoplasma genitalium (strain ATCC 33530 / G-37 / NCTC 10195, with 484 genes. I have attached links to the set, as well as to its helicase. (For the 16S gene you would look that up in a gene not protein database)
http://www.uniprot.org/uniprot/?query=taxonomy:243273
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