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Domain Bacteria and Archaea - Coggle Diagram
Domain Bacteria and Archaea
Domain Bacteria
Diversity based on
Gram Staining
Negative (red)
Positive (blue)
Cell shapes
Spirochete
Bacillus
Vibrio
Spirillum
Coccobacillus
Coccus
Components
Fimbriae- enable prokaryotes to attach to one another/ to cell surface
Endospores- resistence to heat and harmful agents
Capsule- additional protection
Pili- conjugation(exchange DNA)
Flagella- for motility
Differences btw Domain Bacteria and Archaea(Lecture note)
Domain Archaea
3 groups based on
Thermoacidophiles
resistant to high temp. (60-80 *C)
resistant to high acid conc.(below pH 3)
Halophiles
great salt lake/dead sea
require extremely high conc. of salt
Methanogens
obligate anaerobes 专性厌氧菌
swamps and intestinal tracts of animals
found in harsh/extreme environment : hot/acidic/alkaline/saline
are extremophiles
Both prokaryotes
single circular DNA without nuclear envelope
70s ribosomes
unicellular
lack of nucleus
lack of membrane bound organelles
autotrophs or heterotrophs