what is the study of it is called?
Bacteriology.
Bacteria
 The study of bacteria is known as bacteriology, a branch of microbiology.
what is bacteria? A type of biological cell. how did it get the name? The diminutive of βακτηρία ("bakteria"), meaning "staff, cane. who discovered it? UNANSWERABLE where is it found? soil, water, acidic hot springs and radioactive waste.
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Bacteria [SEP] Introduction
In industry, bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.