Fact 1 - Definition: Bacteria is a single-celled or noncellular spherical or spiral or rodshaped organisms lacking chlorophyll that reproduce by splitting in half. Fact 2 - The term bacteria was devised in the 19th century by the German biologist Ferdinand Cohn (24 January 1828 – 25 June 1898) who based it on the Greek word 'bakterion' meaning a small rod or staff. Fact 3 - Ferdinand Cohn classified bacteria into four groups based on shape: Sphericals Short rods Threads Spirals Fact 4 - Some types of bacteria can cause diseases and become harmful to the environment whilst other types others offer benefits Fact 5 - Bacteria are everywhere - in the air, sky, on mountains, in oceans, in humans, animals and on everything we touch Fact 6 - Bacteria are minute, on average most species of bacteria have diameters of 0.5 to 2.0 microns Fact 7 - Some bacteria can move Fact 8 - Anywhere that dead and decaying matter is present is a good home for bacteria Fact 9 - Examples of bacteria include: Acidophilus, a normal inhabitant of yogurt Clostridium welchii the most common cause of gas gangrene E. coli - found in the lower intestine. E. coli can be a threat to food safety Streptococcus, the human mouth and gut. Can cause diseases including strep thro Fact 10 - Bacteria have flourished on earth for over three billion years Fact 11 - Some types can attack plants, causing diseases like leaf spot and fireblight Fact 12 - The term “friendly bacteria” is used to describe the types of bacteria that offer some benefit Helps produce food Keeps soil fertile Helps us to digest food Inhibits the growth of potentially harmful bacteria Fact 13 - Friendly Bacteria: Bacteria in our digestive system help to convert milk protein into lactic acid and reducing the growth of harmful bacteria. Fact 14 - People have millions of bacteria living on the skin surface and on the mucous membranes of the nose, mouth, and bowels Fact 15 - Humans spread bacteria from the mouth and nose Fact 16 - MRSA infections are responsible for more deaths in the U.S. each year than AIDS