Three Domain System Overview
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Questions and Answers

What is the purpose of classifying living things?

  • To increase their population
  • To quickly identify microbes (correct)
  • To make them look organized
  • To change their characteristics

    • What is taxonomy?

  • Study of weather patterns
  • Science of classification (correct)
  • Classification of animals
  • Study of plants only

    • What does binomial nomenclature consist of?

  • Genus name followed by a random name
  • A single name for each organism
  • Species name followed by genus name
  • Genus name followed by species name (correct)

    • What do taxonomists study?

    <p>Classification of living organisms</p> Signup and view all the answers

    Which taxon shows the evolutionary relationship between organisms in a group?

    <p>Phylogeny</p> Signup and view all the answers

    What are the two highest (most inclusive) taxa in biology?

    <p>Domain and Kingdom</p> Signup and view all the answers

    Which is one of the three Domains of living organisms based on the Three Domain System?

    <p>Domain Bacteria</p> Signup and view all the answers

    What distinguishes Eukaryotic species from each other?

    <p>Genetic differences</p> Signup and view all the answers

    How are clones of bacterial cells different from subspecies?

    <p>Clones are genetically identical, while subspecies are not.</p> Signup and view all the answers

    How are viruses classified?

    <p>By Family, Genus, and Species</p> Signup and view all the answers

    What chemical composition is used in Gram staining to differentiate bacteria?

    <p>Peptidoglycan in the cell wall</p> Signup and view all the answers

    What type of parasite is a virus?

    <p>Obligate intracellular parasite</p> Signup and view all the answers

    What suffix typically denotes the Family name of a virus?

    <p>-viridae</p> Signup and view all the answers

    How do subspecies of microbes differ from each other?

    <p>Through genetic mutations over time</p> Signup and view all the answers

    Which kingdom includes organisms that are mainly unicellular and prokaryotic?

    <p>Kingdom Monera</p> Signup and view all the answers

    Which kingdom consists of the simplest eukaryotic organisms, mostly unicellular?

    <p>Kingdom Protista</p> Signup and view all the answers

    Which kingdom is characterized by organisms that are multicellular, autotrophic, and possess a cell wall?

    <p>Kingdom Plantae</p> Signup and view all the answers

    Which type of organisms rely on consuming other organisms for food?

    <p>Heterotrophs</p> Signup and view all the answers

    Which is the lowest taxon in the classification system?

    <p>Species</p> Signup and view all the answers

    Which taxonomic level is the highest for classification purposes?

    <p>Domain</p> Signup and view all the answers

    What distinguishes Domain Archaea from Domain Bacteria?

    <p>Both a and b</p> Signup and view all the answers

    In the Three Domain System, how many Domains do prokaryotic cells belong to?

    <p>Two</p> Signup and view all the answers

    What is the common ancestor cell where all cells originated from called?

    <p>LUCA</p> Signup and view all the answers

    Which Domain contains members of the 4 Kingdoms other than Monera?

    <p>Domain Eukarya</p> Signup and view all the answers

    How many cell types exist based on the information provided?

    <p>Three</p> Signup and view all the answers

    What is the distinguishing feature of Domain Archaea's cell walls compared to Domain Bacteria?

    <p>'Unusual' cell walls with no peptidoglycan</p> Signup and view all the answers

    What is the purpose of Serological testing in microbiology?

    <p>To differentiate between pathogenic and non-pathogenic bacteria</p> Signup and view all the answers

    What is the main function of the Bergey’s Manual of Determinative Bacteriology?

    <p>To identify unknown bacteria systematically</p> Signup and view all the answers

    What is the primary purpose of PCR (Polymerase Chain Reaction) in microbiology?

    <p>To amplify specific DNA segments</p> Signup and view all the answers

    Which method helps determine if an unknown bacterium can breakdown glucose?

    <p>Biochemical tests</p> Signup and view all the answers

    What distinguishes Serological testing from PCR in microbiology?

    <p>Serological testing analyzes DNA sequences to differentiate strains within species</p> Signup and view all the answers

    Which method focuses on making many copies of a specific DNA segment?

    <p>PCR (Polymerase Chain Reaction)</p> Signup and view all the answers

    How does Serological testing aid in microbiology classification?

    <p>By analyzing the DNA sequences to differentiate among strains within species</p> Signup and view all the answers

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