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Taxonomy & Bacteria
AP Focus 6 Kingdom Survey
| Question | Answer |
|---|---|
| Father of Taxonomy | Carolus Linnaeus |
| Developed system of binomial nomenclature | Carolus Linnaeus |
| Binomal nomenclature | each species given a two part name using genus and SPECIFIC EPITHET ex. Canis familiaris (italicized)or C. familiaris (underlined) |
| SPECIFIC EPITHET | second part of name |
| Taxanomic hierarchy | Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species ("Did King Phil Call Out For Good Spaghetti?") |
| How organisms are classified | Phylogeny (evolutionary relationships) and the study of those is called systematics |
| Bacteria used to be classified in this kingdom | Monera |
| Bacteria now classified into two kingdoms called this | Bacteria and Archaea |
| DIFFERENCE B/T BACTERIA AND ARCHAEA | ARCHAEA LACKS THE CELL WALL COMPONENT PEPTIDOGLYCAN |
| Cocci | Round |
| Bacilli | Rod |
| Spirilli | Spiral |
| Flagella | Made of flagellin looped in helical coils |
| ENDOSPORE | HELPS BACTERIA SURVIVE UNFAVORABLE CONDITIONS |
| Autotrophs | Bacteria that use photosynthesis (sunlight) or chemosynthesis (hydrogen sulfie, ammonia, nitrate, or nitrite) to make organic compounds |
| Heterotrophic | Bacteria that function as harmless decomposing organisms (saprobes) or harmful parasites |
| Obligate aerobes | Bacteria that can only live in oxygenated environments |
| Obligate anaerobes | Bacteria that oxygen will kill |
| Falcultative Anaerobes | Bacteria that can live in oxygen or switch to anaerobic metabolism when oxygen isn't availabe |
| Domain Archaea | lack peptidoglycan, have RIBOSOMES, live in extreme environments (X-GAMES) |
| Methanogens | Archaebacteria that are anaerobic and found in swamps, mud, and the guts of animals (such as humans) and produce methane |
| Halophiles | Archaebacteria that are "salt loving", most are aerobic heterotrophs but the anaerobic photosynthetic halophiles have a special photosynthetic pigment called bacteriorhodpsin |
| Thermoacidophiles | Achaebacteria that live in temperature or acidity extremes and can be found in areas such as hot springs or deep ocean hydrotherman vents where they use H2S as an energy source for chemosynthesis |
| Domain Bacteria | grouped by mode of nutrition gram-staining |
| Gram-staining | series of dyes that stain thick peptidoglycan cell walls (gram-positive), those that don't retain the stain (gram-negative) |
| CYANOBACTERIA | Eubacteria, BLUE-GREEN ALGAE CHANGED ATMOSPHERE BY ADDING OXYGEN |
| Nitrogen fixing bacteria | helps convert N2 gas into usable formats for other organisms |