MicrobiologyMicrobiology

The study of things microscopicThe study of things microscopic

BacteriaBacteria

Kingdom Eubacteria and ArchaebacteriaKingdom Eubacteria and Archaebacteria Single-celledSingle-celled ProkaryoticProkaryotic (have no nucleus) (have no nucleus) Various shapesVarious shapes MicroscopicMicroscopic

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

BacteriaBacteria

ShapesShapes Coccus – RoundCoccus – Round

Spirillum – SpiralSpirillum – Spiral

Bacillus - RodBacillus - Rod

BacteriaBacteria

EnergyEnergy HeterotrophsHeterotrophs

Get energy from other organismsGet energy from other organisms

AutotrophsAutotrophs Produce their own energyProduce their own energy

PhotosynthesisPhotosynthesis ChemosynthesisChemosynthesis

BacteriaBacteria

ReproductionReproduction Binary FissionBinary Fission

One bacteriaOne bacteria copies its DNA copies its DNA and the and the splits into twosplits into two..

ConjugationConjugation Two bacteriaTwo bacteria line up next to line up next to

each other and each other and exchange exchange DNADNA..

TransformationTransformation Bacteria Bacteria pick up DNApick up DNA that is that is

present in the environment.present in the environment.

BacteriaBacteria

Bad BacteriaBad Bacteria Damage caused by invasion of tissues and Damage caused by invasion of tissues and

by creating toxinsby creating toxins AntibioticsAntibiotics

Kills the bacteriaKills the bacteria or keeps more from growing or keeps more from growing Overuse of antibiotics can create super bacteria Overuse of antibiotics can create super bacteria

– bacteria that are resistant to antibiotics– bacteria that are resistant to antibiotics

Life Science: Life Science: Bacteria - AnitbioticsBacteria - Anitbiotics