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Test #1

QuestionAnswer
Endosymbiotic Theory Eukaryotic cells originated when smaller prokaryotic cells started living inside larger prokaryotic cells
Evidence to support Endosymbiotic Theory 1. organelles of eukaryotic cells have circular DNA 2. posess small ribosomes 3.divide by binary fission
Eukaryotic Cells true nucleus with nuclear membrane and nucleoli, linear DNA arranged in chromosomes and bound with histones, membrane enclosed organelles are present, large ribosomes, all organisms except bacteria
Prokaryotic Cells found in bacteria and archaea, no nuclear membrane or nucleoli, single circular DNA molecule not bound with histone proteins, membrane enclosed organelles are absent, small ribosomes
Domain Archaea prokaryotic, bacteria like, live in extreme habitats
Domain Bacteria prokaryotic, true bacteria
Domain Eukarya all eukaryotic organisms
Binomial nomenclature 2 name naming system: 1st part is Genus name and it is always capitalized 2nd part is species name and is never capitalized; the whole name is written in italics or underlined
What is the advantage to using binomial nomenclature system all people agree what they are talking about
What is the difference between Clostridium sp. and Clostridium spp. Clostridium sp. refers to species in singular to denote an unknown species of known genus Clostridium spp. is species in plural to refer to all members of a species
Taxonomic hierarchy 1. Kingdom 2. Phylum 3. Class 4. Order 5. Family 6. Genus 7. Species
Prokaryotic species a group of cells with similar characteristics
Genus a group of closely related species
Strain a group within a species; usually defined by physiological traits; denoted by letters, numbers or names following the proper scientific name
Clone a group of organisms all derived from a single cell
What resource is used to identify and classify bacteria? Bergey's Manual
What characteristics are used to identify bacteria? morphology, differential staining, biochemical tests, oxygen requirement, serology test, phage typing, molecular methods
Created by: lisaanne11
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