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 (B)</p> Signup and view all the answers

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

<p>Phylogeny (D)</p> Signup and view all the answers

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

<p>Domain and Kingdom (D)</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 (A)</p> Signup and view all the answers

What distinguishes Eukaryotic species from each other?

<p>Genetic differences (C)</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. (B)</p> Signup and view all the answers

How are viruses classified?

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

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

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

What type of parasite is a virus?

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

What suffix typically denotes the Family name of a virus?

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

How do subspecies of microbes differ from each other?

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

Which kingdom includes organisms that are mainly unicellular and prokaryotic?

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

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

<p>Kingdom Protista (A)</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 (B)</p> Signup and view all the answers

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

<p>Heterotrophs (D)</p> Signup and view all the answers

Which is the lowest taxon in the classification system?

<p>Species (C)</p> Signup and view all the answers

Which taxonomic level is the highest for classification purposes?

<p>Domain (B)</p> Signup and view all the answers

What distinguishes Domain Archaea from Domain Bacteria?

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

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

<p>Two (C)</p> Signup and view all the answers

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

<p>LUCA (A)</p> Signup and view all the answers

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

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

How many cell types exist based on the information provided?

<p>Three (D)</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 (B)</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 (D)</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 (B)</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 (A)</p> Signup and view all the answers

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

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

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

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

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