microbiology lecture possibles

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  1. what are the 4 processes of life
    • growth
    • reproduction
    • responsiveness
    • metabolism
  2. what is the increase in size
  3. what is an increase in number
  4. controlled chemical reactions of organisms
  5. membrane bound structure capable of using the 4 main functions of life
    cellular structure
  6. does growth occur in viruses
    no viruses to do not change in size
  7. do viruses reproduce
    host cells replicate the virus
  8. do viruses have responsivness
    reaction to host cells seen in some viruses
  9. do viruses have cell structure
    viruses lack the cytoplasmic membrane or cell structure
  10. which organisms use all the factors of life
    bacteria, eukaryote, and archae, but viruses do not
  11. why is the smallest bacterium mycoplasma still alive even though it cannot move?
    Mobility is not one of the main characteristics of life.
  12. what two types are included in prokaryotes
    bacteria and archae
  13. describe the structure of a prokaryote (bacteria or archae)
    • no nucleus
    • lack various membrane bound internal structures
  14. what are included in eukaryotes
    algae, protozoa, fungi, animals, and plants
  15. what is the structure of a eukaryote
    • have nucleus
    • have organelles
    • have more complex structure
  16. what is a gelatinous, sticky substance surrounding the outside of a cell composed of polysaccharides, polypeptides, or both
  17. what are the two types of glycocalyx
    • capsule
    • slime
  18. composed of organized repeating units of organic chemicals, firmly attached to cell surface, and also may protect bacteria from being recognized by the host
  19. loosely attached to cell surface, water soluble, sticky layer allows prokaryotes to attach to surfaces as biofilms
    slime layer
  20. these are responsible for movement, have long structures that extend beyond the cells surface, but they are not present in all bacteria
  21. this is the structure of a certain motility, composed of filament, hook and basal body.
    basal body anchors the hook and filament to cell body
  22. sticky bristle like projections, used by bacteria to adhere to one another and to substances in the environment.
    they are shorter than flagella
    serve as an important function in biofilms
    fimbriae and pili
  23. special type of fimriae
    also known as conjugation
    longer than fimbriae but shorter than flagella
    bacteria typically have one or two per cell
    transfer DNA
  24. why isĀ  a pilus a type of fimbriae but flagellum is not
    its used to adhere not to move
  25. what are the two basic types of cell walls
    • Gram Positive
    • Gram Negative
  26. What are bacterial cell walls composed of
  27. which cell walls have a thicker layer of peptidoglycan?
    Gram positive
  28. cell walls that contain polyalcohols called teichoic acid
    Gram pos
  29. cell walls that are purple after a gram staining
    gram pos
  30. cell walls that have a presence of 60% myocolic acid in acid fast bacteria helps cells survive desiccation are which type
    gram pos
  31. which cell walls appear pink after a gram stain
    Gram neg
  32. cell walls the have a thin layer of peptidoglycan are
    gram neg
  33. a bilayer membrane outside the peptidoglycan contains phospholipids, protiens, LPS of what type of cell wall
    gram neg
  34. LPS portion can cause fever vasodilation, imflamation, shock and blod clotting and may impede the treatment of disease which portion?
    lipid A
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microbiology lecture possibles
2014-09-17 13:19:56

from book
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