Bacteriology

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Author:
jess03
ID:
40255
Filename:
Bacteriology
Updated:
2010-10-09 22:01:17
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Microbiology crosswork
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Section 2
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  1. A microbe capale of growth between 45 degrees C and 80 degrees C
    Thermophile
  2. The phase of the bacterial growth curve in which the rate growth and the rate of death are equal
    Stationary
  3. Bacteria that posses sexsex pili are capable of this process involving the transfer of genetic material from one cell to another
    conjugtion
  4. Bacteria described as coiled or wavy rods
    Spirals
  5. A flexible helical shaped bacterium
    Spirochetes
  6. External cell structure that is long, thin, hairlike and flexible
    Flagellum
  7. Cell structure that controls metabolism and reproduction
    Nucleoid
  8. A round or spherical shaped bacterium
    Coccus
  9. Process of bacterial reproduction
    Binary fission
  10. Small loops of DNA occurring in the cytoplasm of bacterial cell
    Plasmids
  11. Inclusions (storage) granules consist of stored ___________
    Nutrients
  12. Hairlike appendages extending from the surface of the cell that function to attach bacteria to surfaces (mucus membrane)
    Pili
  13. cell membrane is composed of a double layer of _______
    Phospholipids
  14. Proteins that extend through both lipid layers of the cell membrane from the __________
    Pores
  15. An organism that requires a source of organic compounds
    Heterotrophs
  16. In the death phase of the bacterial growth curve the rate of death is ______ than the rate of reproduction
    Greater
  17. A microbe that grows in the absence of oxigen
    Amerobe
  18. The initial phase of the bacterial growth curve in which there is NO INCREASE in the population
    Lag
  19. The temperature or pH at which a microbe grows best
    Optimum
  20. The function of the flagella
    Motility
  21. Ribosomes are composed of _________ and proteins
    RNA
  22. Energy is stored in this ccompound
    ATP
  23. A microbe that grows between 20 degrees C and 45 degrees C (50 degrees C)
    Mesophile
  24. Bacterial growth is measured by an increase in the bacterial ___________
    Population
  25. Cell structure that protects bacterial cells from differences in the internal and external osmotic pressure
    Cell wall
  26. Increase in the size of a bacterial population is expressed as a __________ function
    Logarithmic
  27. Protein molecules attached to the inside surface of the cell membrane function as ______ that catalyze chemical reactions (i.e: production of energy)
    Enzymes
  28. The cell walls of Gram _______ bateria contain many layers of murein
    Positive
  29. The capsule consists of a variety of polypeptides and ________
    polysaccharides
  30. Bacterial growth is expressed as a logarithmic exponent of ________
    2
  31. An elongated, rod shaped bacterium
    Bacillus
  32. A thick, gelatinous layer that adheres to the outside of the cell wall and prevents phagocytosis
    Capsule
  33. A bacterium that grows at pH 5 to 8
    Neutrophile
  34. Type of nutrients required by autotrophic bacteria for growth
    Inorganic
  35. Plasmids may contain genes for antibiotics resistance called _____________
    R factor
  36. Cell structure that controls the absorption of nutrients and elimination of wastes
    Cell membrane
  37. organism requiring oxygen for growth
    Aeorbe
  38. Organism that utilizes non living organic material for growth
    Saprophyte
  39. Organism that growns between 0 degrees C and 20 degrees C
    Psychra
  40. A comma shaped bacterium
    Vibrio
  41. Due to the presence of small pores, the cell membrane may be described as a _______
    membrane
  42. Function of the endorspores
    Survival
  43. A microbe that grows within a pH range of 0 to 5
    Acidophile
  44. The filling of cell
    Cytoplasm
  45. Highly resistant, dormant structure formed within some bacteria
    Endospores
  46. Salt loving bacteria
    Halophiles
  47. Sites of protein synthesis within the bacterial cell
    Ribosome
  48. A microbe that can grow in the presence or absence of oxygen
    Facultative
  49. Bacteria are measured in units called _______
    Micrometers
  50. A rigid corkscrew shaped bacterium
    Spirillum
  51. The major component of the cell wall is a peptidoglycan called _________
    Murien
  52. the study of structure
    Murphology
  53. the cell wall is responsible for the _________ of the bacterial cell
    Shape
  54. THe phase of the bacterial growth curve in which the population is rapidly increasing
    Log
  55. genetic material in a bacterium is composed of a single strand of ___________
    DNA

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