Bacteriology- Bio and Structure of Bacteria.txt

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Bacteriology- Bio and Structure of Bacteria.txt
2015-04-02 21:01:43
vetmed bacteriology

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  1. All bacteria are members of the kingdom _________; the two domains containing bacteria are _________ and ________.
    Prokaryotae; Bacteria; Archaea
  2. What are the 3 types of bacteria in domain Bacteria?
    gram-negative, gram-positive, mycoplasma (lack a cell wall)
  3. Archaeobacteria are not _________.
  4. What is a common way to refer to specific bacteria?
    genera and species
  5. A well-defined group of bacteria.
  6. Basic taxon of bacteria.
  7. Within species, what are they different groups?
    subspecies, strain, biovars, and serovars
  8. A _______ is derived from an initial single colony isolated from an exogenous source, such as a pathologic lesion.
  9. A _______ is the permanent example of the species.
    type strain
  10. ______ within a species have distinctive antigenic properties.
  11. 16S rRNA exhibits more homology among widely dissimilar organisms than does total DNA, making this genetic basis for classification useful in comparing distantly related organisms.
    ribosomal RNA sequencing
  12. Genetic basis for classification that compares sets of selected genes or whole genomes of related bacteria.
    base sequence comparison
  13. Capsules and slimes are visualized by _________ in ________.
    negative staining in India ink
  14. Capsules and slimes confer _______.
    K antigen
  15. 3 functions of capsules and slimes.
    retard phagocytosis, confer adherence, covers surface antigen
  16. Type of bacteria with a cell wall composed of thick peptidoglycan and teichoic acid.
    gram-positive bacteria
  17. Acid fast organisms are ________ and contain ______________.
    gram positive; mycolic acid derivatives
  18. Type of bacteria with a cell wall composed of a thin layer of peptidoglycan, and the outer membrane contains lipopolysaccharides and porins.
    gram-negative bacteria
  19. Cell structure that determines the bacteria's resistance in the environment, confer shape, counteract osmotic pressure, and provide a physical barrier.
    cell wall
  20. The site of many antibiotic action, often determining the antibiotic sensitivity.
    cell wall
  21. Immune and vaccine target of bacteria.
    cell wall
  22. The unique structure of bacteria cell walls that is the site of action of a number of antibiotics.
  23. The O-antigen of gram-negative bacteria.
  24. The toxic component of bacteria; endotoxin.
    Lipid A (lipopolysaccharide)
  25. Filaments that are components of flagella located in the periplasmic space b/w the inner and outer membrane.
    axial filaments
  26. Cell structures that confer rapid motility and confer H antigen.
  27. Flagella confer _________.
    H antigen
  28. The function of common pili.
  29. Sex pili are responsible for _________.
    genetic transfer (conjugation)
  30. The target of various antibiotics that is part of the cytoplasm.
    70S ribosomes
  31. Encode genes essential for bacterial and genes for virulence factors, antibiotic resistance, and toxins.
  32. Highly-resistant, thick-walled structure.
  33. The spore coat of an endospore is a __________ keratin-like protein.
  34. Poorly polymerized peptidoglycan synthesized in the space b/w 2 layers of plasma membranes part of an endospore.
    spore cortex
  35. What is the function of the spore?
  36. 2 types of bacteria that form endospores.
    bacillus and clostridium
  37. Chain of spores produced by nocardia and dermatophilus.