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Bacteria Bacteria are microscopic, unicellular organisms. Shape of Bacteria Round Example – strep throat (Streptococcus) Shape of Bacteria Rod-shaped Example – E. coli or Salomella Usually found in the intestines Shape of Bacteria Spiral shaped Example – Lyme disease (Borrelia burgdorferi) Movement of Bacteria Flagella – a long whip-like structure that helps the cell move by spinning in place like a propeller. A bacterial cell can have many flagella, one or none. If a bacterial cell does not have a flagella, they depend on air, water or clothing to carry them around. Reproduction Bacteria split to reproduce. Some can split every 20 minutes. video Types of Bacteria Helpful Bacteria Used to make food: cheese, sauerkraut, pickles, sour cream and yogurt Helpful bacteria Nature’s clean-up crew - Bacteria, along with fungus and some insects are decomposers that help break down dead matter. Click here for a video of decomposing matter. (get ready – this is a little intense!) Harmful Bacteria Illness and Health –Strep throat and food poisoning Antibiotic A chemical that can kill bacteria.