Ch 6: Classification Flashcards
What is taxonomy
- membrane wall
- nucleus/ organelles
- reproductions
- morphology
What are possible reproductions
Binary fission, snapping division, budding
Energy/ carbon source
Absorb, photosynthesis, ingest
Morphology
Cocci, bacilli
3 domains of life
-eukarya
- archaea
- bacteria
Eukarya
- fungi
- animal/ plants
- protists, flagellas
Archaea
-halophiles
- thermophiles
Bacteria
-Cyanobacteria
- heterotrophic bacteria
Characteristic of archaea
- lack true peptidoglycon
- cell membrane lipids
- reproduce through binary fission
- don’t cause disease
(4 phyla)
Phyla of archaea
Extremophiles
- crenatchaeota
- eurkarchaeota
- nanoatchaeota
• methangens
- kor(y)archaeota
Characteristics of extremoohiles
- extreme conditions
- thermophiles : DNA/RNA die 45°C
-Halophiles: all Euryarchaeota, red orange pigments
Characteristics of methanogens
-Largest group of Archaea
-Convert CO2, H2, organic acids to methane
-Primary sources of methane
Characteristics of bacteria
-classified by bacteria wall as positive or negative
-P.Proteobacteria
- Cyanobacteria and chlorobi
- chemoheterotrophs
A. Proteobacteria
-nitrogen fixers
-Purple nonsulfur phototrophs
1 pathogenic’
Gammaproteobacteria
- purple sulfur
- intracelleular
- methane oxidizers
- branched, phototrophic
- largest group of Proteobacteria
Phototrophic bacteria
- autotrophic
- live in normal environments
- hot, acidic, anaerobic, high UV