Classification of Prokaryotes Quiz
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Classification of Prokaryotes Quiz

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Questions and Answers

Which group of bacteria is known for having no peptidoglycan in their cell walls?

  • Firmicutes
  • Archaebacteria (correct)
  • Eubacteria
  • Proteobacteria

    • All Prokaryotes are eukaryotic organisms.

    False

    What is the primary method of reproduction in Eubacteria?

    Binary fission

    Methanogens are examples of ______ that thrive in extreme living conditions.

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

    Match the following groups of bacteria with their respective volumes:

    <p>Archaea and deeply branching bacteria = Volume I Proteobacteria = Volume II Firmicutes = Volume III Spirochaetes, Bacteroidetes, and other groups = Volume IV Actinobacteria = Volume V</p> Signup and view all the answers

    Extreme halophiles are known to cause disease in humans.

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

    Which of the following groups is characterized by a lack of peptidoglycan?

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

    What is the primary purpose of the 2nd edition mentioned in the content?

    <p>To provide the most up-to-date phylogenetic classification of prokaryotic organisms.</p> Signup and view all the answers

    The genus ______ includes species that share common characteristics and are closely related.

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

    Which of the following is a characteristic of methanogens?

    <p>They produce methane.</p> Signup and view all the answers

    Match the following kingdoms with their respective domains:

    <p>Kingdom Animalia = Domain Eukarya Kingdom Plantae = Domain Eukarya Kingdom Fungi = Domain Eukarya Kingdom Bacteria = Domain Bacteria</p> Signup and view all the answers

    What is an example of a species under the genus Lactobacillus?

    <p>L.delbrueckii</p> Signup and view all the answers

    All prokaryotic organisms are classified under the same domain.

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

    What is the term for the classification system introduced by the 'Father of Modern Taxonomy'?

    <p>Binomial Nomenclature</p> Signup and view all the answers

    The species name is capitalized in the binomial naming system.

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

    What should be done to the names of all taxa in scientific writing?

    <p>They should be printed in italics.</p> Signup and view all the answers

    The genus name and species name together are known as _____ names.

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

    Match the following microorganism names with their descriptions:

    <p>Staphylococcus aureus = Grape-like cluster, golden in color Helicobacter pylori = Spiral-shaped rod Proteus vulgaris = First and common Streptococcus viridans = Chains of spheres, green in color</p> Signup and view all the answers

    Which of the following statements is true regarding the publication 'Systema Naturae'?

    <p>It established the foundation for modern taxonomy.</p> Signup and view all the answers

    All strain designations and numbers are italicized in scientific writing.

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

    A specific epithet must be preceded by a _____ name.

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

    What is the primary focus of Bergey’s Manual of Systematic Bacteriology?

    <p>Identification of unknown bacteria</p> Signup and view all the answers

    The Kingdom designation is widely accepted in microbial phylogeny.

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

    What did David H. Bergey contribute to microbiology in 1923?

    <p>Bergey's Manual of Determinative Bacteriology</p> Signup and view all the answers

    The __________ domain includes unicellular prokaryotes with a cell wall containing peptidoglycan.

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

    Which of the following is true about the Domain Archaea?

    <p>It includes prokaryotes that lack peptidoglycan in their cell walls.</p> Signup and view all the answers

    Match each manual to its publication year:

    <p>Bergey’s Manual of Determinative Bacteriology = 1923 Bergey’s Manual of Systematic Bacteriology = 1984 Second edition of Bergey’s Manual of Systematic Bacteriology = 2001 Bergey’s Manual (9th edition) = Current Edition</p> Signup and view all the answers

    Each domain is divided into __________, which are then divided into classes.

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

    Sponges, worms, insects, and chordates are examples of prokaryotic organisms.

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

    How is E.coli O157 correctly written?

    <p>E. coli O157</p> Signup and view all the answers

    Gram staining is a biochemical characteristic used for the identification of microorganisms.

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

    What is slide agglutination commonly used for?

    <p>Identifying bacteria through serology.</p> Signup and view all the answers

    _________ include characteristics such as size, shape, and cellular structures.

    <p>Morphological characteristics</p> Signup and view all the answers

    Match the following identification methods with their descriptions:

    <p>Gram stain = Differential stain to classify bacteria ELISA = Method for detecting antibodies Western blot = Protein identification technique Southern blot = DNA identification technique</p> Signup and view all the answers

    Which of the following is NOT a biochemical characteristic?

    <p>Slide agglutination</p> Signup and view all the answers

    Cell wall structure can be determined through DNA hybridization.

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

    What is one advantage of DNA chip technology in microorganism identification?

    <p>It is highly specific.</p> Signup and view all the answers

    Study Notes

    Classification of Organisms

    • Classification relies on phylogenetic relationships, mainly through nucleic acid sequences like 16S rRNA.
    • Main kingdoms: Prokaryotae (Monera), Protista, Fungi, Plantae, and Animalia.

    Prokaryotic Kingdoms

    • Eubacteria: True bacteria that reproduce via binary fission; gain energy from organic/inorganic chemicals or photosynthesis.
    • Archaebacteria (Archaea):
      • Exhibit unusual metabolism.
      • Thrive in extreme environments; lack peptidoglycan in cell walls.
      • Not known to cause diseases in humans and animals, examples include Methanogens, Halophiles, and Thermoacidophiles.

    Bergey's Manuals

    • Bergey's Manual of Systematic Bacteriology: A comprehensive classification effort begun in 2001 to update knowledge on prokaryotic organisms.
    • Second edition will consist of five volumes, covering different bacterial and archaeal groups:
      • Volume I: Archaea and deeply branching bacteria.
      • Volume II: Proteobacteria.
      • Volume III: Firmicutes.
      • Volume IV: Spirochaetes, Bacteroidetes, others.
      • Volume V: Actinobacteria.

    Domain Eukarya

    • Encompasses all eukaryotic organisms, including:
      • Kingdom Animalia
      • Kingdom Plantae
      • Kingdom Fungi
      • Kingdom Protista

    Taxonomic Hierarchy

    • Taxonomic categories include Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species, and Subspecies.
    • Genus represents closely related species, with scientific names using binomial nomenclature (e.g., Bacillus anthracis).

    Naming Conventions

    • Genus names are capitalized; species names are lowercase and italicized.
    • Full genus name must be included for specific epithets upon first use.
    • Unique morphology, ecological traits, and biochemical characteristics aid in identification.

    Microbial Identification Techniques

    • Classification involves morphological characteristics, DNA hybridization, and rRNA sequencing.
    • Identification combines various methods including serology (study of immune responses).
    • Techniques include slide agglutination, ELISA, Western blotting, Southern blotting, and DNA chips.

    Classification Properties

    • Key attributes for classification:
      • Colony morphology and cell shape/arrangement.
      • Cell wall structure (e.g., Gram staining) and special cellular structures.
      • Biochemical characteristics enhance identification accuracy and specificity.

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    Related Documents

    V.Micro 151 Module 5.pdf

    Description

    Test your knowledge on the classification of prokaryotes, focusing on Eubacteria and Archaebacteria. This quiz covers phylogenetic relationships and the use of nucleic acid sequences like 16S rRNA. Challenge yourself with questions about the characteristics and energy sources of different bacteria.

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