Cards (139)

  • What is the primary goal of medical microbiology?
    To diagnose infectious diseases
  • How does medical microbiology diagnose infectious diseases?
    By detecting microorganisms or their products
  • What information does medical microbiology provide regarding microorganisms?
    Antimicrobial susceptibility of isolated microorganisms
  • What is one aim of medical microbiology?
    To control infectious diseases
  • Who constructed the first microscope?
    1. and Z. Janssen
  • Who is considered the "father of microbiology"?
    Anton van Leeuwenhoek
  • What did Anton van Leeuwenhoek discover?
    "Animalcules" and basic shapes of microbes
  • What theory did Friedrich Henle propose?
    The "germ theory"
  • What did A. Pollender identify in 1849?
    Bacillus anthracis as rods in animal blood
  • What significant contributions did Louis Pasteur make to microbiology?
    Established microbiology as an independent discipline
  • What did R. Koch introduce for bacterial isolation?
    Agar media
  • What did J. Lister develop for surgery?
    The antiseptic method
  • What did Otto Müller initiate in microbiology?
    The taxonomic classification of microbes
  • When did the era of chemotherapy begin?
    In 1910
  • What did Alexander Fleming discover?
    Penicillin
  • What is the classification of organisms in bacterial taxonomy based on?
    Biochemical, physiological, genetic, and morphologic properties
  • What are the three areas of bacterial taxonomy?
    Classification, nomenclature, identification
  • What is the purpose of nomenclature in bacterial taxonomy?
    Naming organisms according to international rules
  • What is the broadest taxonomic rank for bacteria?
    Kingdom
  • What is the significance of the Gram staining method?
    It divides bacteria based on cell wall structure
  • What is one criterion for the classification of bacteria?
    Growth on media
  • What does numerical taxonomy use for classification?
    A large number of unweighted characteristics
  • What is the limitation of numerical taxonomy?
    It does not account for bacterial evolution
  • What does phylogenetic classification measure?
    Relatedness between organisms
  • What is the definition of a bacterial species?
    A genomically coherent group of isolates
  • What does G+C content indicate?
    Similarity in closely related bacteria
  • What is the significance of ribosomal RNA in classification?
    It allows elucidation of evolutionary relationships
  • What are the major categories of eubacteria?
    Gram-negative and Gram-positive eubacteria
  • What is a characteristic of Gram-negative eubacteria?
    They have a complex cell envelope
  • How do Gram-positive eubacteria reproduce?
    By binary fission
  • What is a defining feature of mycoplasmas?
    They lack a peptidoglycan cell wall
  • What are viruses classified based on?
    Virion morphology and genome properties
  • What suffix do virus family names typically have?
    -viridae
  • What is a basic difference between eukaryotic and prokaryotic cells?
    Eukaryotic cells have a nucleus
  • What is the approximate size of prokaryotic cells?
    0.5-3.0 µm
  • What is the structure of prokaryotic chromosomes?
    Single, circular DNA, haploid genome
  • What is the function of ribosomes in eukaryotic cells?
    Protein synthesis
  • How is bacterial morphology studied?
    Using staining and a light microscope
  • What is the size range for small bacteria?
    0.5 µm
  • What are the shapes of round-shaped bacteria called?
    Cocci