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5 Written questions

5 Matching questions

  1. smear
  2. inoculation
  3. broth
  4. thermophiles
  5. phase contrast
  1. a a type of light microscope that transforms subtle changes in light waves passing through the specimen into differences in light intensity, best for observing intracellular structures.
  2. b injecting a person with a small dose of a virus to help build up defenses to a disease
  3. c material spread on a surface (as of a microscopic slide)
  4. d liquid media used for growing cells
  5. e bacteria that survives in temperatures from 45 C-110 C; grows in very hot conditions

5 Multiple choice questions

  1. population of cells arising from a single cell
  2. Chemically defined have a know molecular formula
  3. The published source for bacterial classification
  4. (microbiology) a group of organisms grown from a single parent cell
  5. freeze-drying....a common way to desiccate a stock culture. a liquid culture of the microorganism is poired into a small test tube, skim milk is often added to protect the cells during the drying process. then the mixture is frozen with dry ice and exposed to a vacuum. the test tube is tightly sealed by fusing the neck shut with a flame. once the process is complete, the culture can be stored at room temperature

5 True/False questions

  1. halophilebacteria that survives in temperatures from 45 C-110 C; grows in very hot conditions


  2. ribosomesmall particle in the cell on which proteins are assembled; made of RNA and protein


  3. trace elementscan only survive in aerobic conditions


  4. psychrophileOrganism that prefers moderate temperatures (20-45C); we are the perfect temp for these organisms


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