Chapter 9: Physical and chemical control

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Across
  1. 2. shortest length of time to kill all test microbes at certain temps
  2. 4. growth of microorganisms in the blood and other tissues
  3. 6. reduces the number of microbes on human skin. on living skin
  4. 7. chemical dissolved in pure alcohol or alcohol-water mixtures
  5. 8. killing agents
  6. 9. chemically removes microorganisms- EX. soap/ detergents
  7. 11. to stand still
  8. 12. radiation to sterilize materials sensitive to heat or chemicals. Highly affective
  9. 14. prevents the entry of infectious agents
  10. 15. process of freezing and drying- preserves microorganisms in a viable state for years
Down
  1. 1. destroy vegetative pathogens but not bacterial endospores
  2. 3. vegetative cells directly exposed to normal temp gradually become dehydrated
  3. 5. destroys all viable microorganisms, including viruses and endospores
  4. 10. radiation passing through air, slightly through liquids, poorly through solids. Not as penetrating
  5. 13. lowest temp required to kill all microbes in a sample in 10 mins