Kingdom and Domain
Characteristics
- Eu-Bacteria
- Eu-Bacteria
Characteristics
- Prokaryotic
- Unicellular
- Microscopic (can't be seen with unaided eye)
- Varied shape
- bacillus (rod)
- cocci (circular)
- spiral
- star (e.g. Stella vacuolata, figure 1)
- square
- Found everywhere without extreme conditions (including inside you)
- May cluster, group, or chain
- Reproduce through binary fission
- Varied food sources
- photosynthesis (e.g. chlorobiaceae or green sulfur bacteria figure 2)
- inorganic chemicals
- organic chemicals
- May have flagella
Field of Study
- Microbiology
- Bacteriology
- classification
- identification
- characterization
- bacteriologist
Affect on Us
- Positive
- digestion (e.g. E. Coli figure 3)
- dead skin cells
- making food (cheese, yogurt, etc.)
- recycle nutrients from dead plants and animals
- make nitrogen usable
- create protein crystals used in pesticides
- Negative
- bacterial infection
- disease