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5 Written questions

5 Matching questions

  1. Watson & Crick
  2. Woese
  3. Distinguish between chemically defined, complex and living media.
  4. pathogenic
  5. doubling time
  1. a the time required for a population to double in size
  2. b Chemically defined have a know molecular formula
  3. c disease causing
  4. d proposed classifying all life into three domains
  5. e United States geneticist who (with Crick in 1953) helped discover the helical structure of DNA (born in 1928)

5 Multiple choice questions

  1. Being free of disease-producing microbes
  2. discovered the first antibacterial agent, a compound effective against the spirochete that causes syphilis
  3. A simple stain is one dye. A differential stain is two different colored dyes .Four steps: Crystal Violet, Iodine treatment, Decolorization, and Counter Stain
  4. French chemist and biologist whose discovery that fermentation is caused by microorganisms resulted in the process of pasteurization (1822-1895); he cured his family with theory and thier rabies
  5. 1.Incoulate 2.Incubate 3. Isolation 4.Inspection 5. Identification

5 True/False questions

  1. facultative anaerobeAn organism that makes ATP by aerobic respiration if oxygen is present but that switches to fermentation under anaerobic conditions.


  2. inoculationinjecting a person with a small dose of a virus to help build up defenses to a disease


  3. pure culturepopulation of cells arising from a single cell


  4. aseptic techniquesteps necessary to ensure an environment free from pathogens


  5. phase contrastpopulation of cells arising from a single cell


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