eubacteria
True bacterial domain
Eubacteria is a scientific term for the vast majority of bacteria—the ordinary, "true" bacteria as distinguished from archaea, which were once grouped together with them.
The distinction matters in evolutionary biology: eubacteria and archaea represent two fundamentally different domains of life, despite both being single-celled organisms without nuclei.
In casual use, when people say "bacteria," they almost always mean eubacteria.
Cell without nuclear membrane
- cyanobacteriaPhotosynthetic bacteria producing oxygen
- spirocheteSpiral-shaped bacterium
- bacillusCylindrical bacterial cell
- genusTaxonomic rank above species
species · phylum · phylogeny · taxon · domain · morphology · archaea
Rigid plant cell boundary
- ribosomesCellular translation machinery
- nucleoidProkaryotic chromosome region
- plasmidSelf-replicating DNA circle
- cytoplasmGel surrounding the nucleus
flagella · capsule · endospore · unicellular · membrane · chromosome
Collective social practices
- colonyDependent territorial settlement
- agarAlgae-derived gelling substance
- incubationDevelopment before emergence
- stainingApplying dye or pigment
microscopy · inoculation · broth · autoclave · aseptic · isolation · microbiology
Organism breaking down corpses
- biofilmAdhesive layer of microorganisms
- symbiosisInterspecies biological interdependence
- microbiomeBody's microbial community
- photosyntheticProducing energy from light
anaerobic · aerobic · saprophyte · extremophile · thermophile · aquatic · terrestrial · microbiota
Pathogen invasion causing illness
- diseaseDisorder impairing normal function
- virulenceCapacity to cause disease
- toxinBiological-origin harm agent
- sepsisDangerous inflammatory infection response
cholera · tuberculosis · salmonella · staphylococcus · streptococcus · plague · anthrax · listeria
Microbial sugar conversion
- bioreactorVessel for growing organisms
- biofuelFuel from organic sources
- bioremediationLiving organisms detoxify pollutants
- probioticsLive microorganisms aiding digestion
enzymes · antibiotics · recombinant · cloning · lactobacillus · bioprocessing
prokaryote
Cell without nuclear membrane
- cyanobacteriaPhotosynthetic bacteria producing oxygen
- spirocheteSpiral-shaped bacterium
- bacillusCylindrical bacterial cell
genus · species · phylum · phylogeny · taxon · domain · morphology · archaea
cell-wall
Rigid plant cell boundary
- ribosomesCellular translation machinery
- nucleoidProkaryotic chromosome region
- plasmidSelf-replicating DNA circle
cytoplasm · flagella · capsule · endospore · unicellular · membrane · chromosome
culture
Collective social practices
- colonyDependent territorial settlement
- agarAlgae-derived gelling substance
- incubationDevelopment before emergence
staining · microscopy · inoculation · broth · autoclave · aseptic · isolation · microbiology
decomposer
Organism breaking down corpses
- biofilmAdhesive layer of microorganisms
- symbiosisInterspecies biological interdependence
- microbiomeBody's microbial community
photosynthetic · anaerobic · aerobic · saprophyte · extremophile · thermophile · aquatic · terrestrial · microbiota
infection
Pathogen invasion causing illness
- diseaseDisorder impairing normal function
- virulenceCapacity to cause disease
- toxinBiological-origin harm agent
sepsis · cholera · tuberculosis · salmonella · staphylococcus · streptococcus · plague · anthrax · listeria · contagion
fermentation
Microbial sugar conversion
- bioreactorVessel for growing organisms
- biofuelFuel from organic sources
- bioremediationLiving organisms detoxify pollutants
probiotics · enzymes · antibiotics · recombinant · cloning · lactobacillus · bioprocessing