Microbiology The study of things microscopic

Bacteria  Kingdom Eubacteria and Archaebacteria  Single-celled  Prokaryotic (have no nucleus)  Various shapes  Microscopic

 Life Science: Bacteria – Intro to bacteria (2:44)

Bacteria  Shapes  Coccus – Round  Spirillum – Spiral  Bacillus - Rod

Bacteria  Energy  Heterotrophs  Get energy from other organisms  Autotrophs  Produce their own energy  Photosynthesis  Chemosynthesis

Bacteria  Reproduction  Binary Fission  One bacteria copies its DNA and the splits into two.  Conjugation  Two bacteria line up next to each other and exchange DNA.  Transformation  Bacteria pick up DNA that is present in the environment.

Bacteria  Bad Bacteria  Damage caused by invasion of tissues and by creating toxins  Antibiotics  Kills the bacteria or keeps more from growing  Overuse of antibiotics can create super bacteria – bacteria that are resistant to antibiotics

 Life Science: Bacteria - Anitbiotics