Physical Methods

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Across
  1. 2. doesn’t sterilize, asepsis; endospores, protozoa cysts can still live
  2. 4. kills all microbes (ex: autoclaving)
  3. 5. free of pathogenic contaminants
  4. 6. microbe growth in blood and other living tissues
  5. 8. freeze drying; used for long-term preservation
  6. 9. excites atoms by raising them to a higher energy state but does not ionize them; disinfecting surfaces; UV light is good; terrible at penetrating; affects structure of DNA; measured in nm when talking about UV rays as an example of this
  7. 12. kill
  8. 13. mechanical cleansing technique to reduce number of microbes to reduce contamination; meeting health standards
  9. 15. not sterile; heat; can live (batch, flash, UHT)
  10. 23. heat; not as effective as boiling
  11. 24. used on non-living surfaces; destroys most microbes
  12. 26. mechanical removal of most microbes from living and non-living surfaces
Down
  1. 1. degerming; good for heat-sensitive things
  2. 3. steam and pressure (sterilization)(121*C, 15 psi, 15 mins)
  3. 7. preservation; slows metabolism
  4. 10. still static mainly; slows down the ability to grow
  5. 11. removing number of microbes on human skin
  6. 14. only way to kill prions
  7. 16. practice of preventing microbial entry into sterile tissues
  8. 17. inhibits growth
  9. 18. electron radiation that ejects orbital electrons from an atom causing ions to form; good at killing, but not penetrating; measured in Grays
  10. 19. static; dries out cells
  11. 20. more effective than quick freezing
  12. 21. used in labs as a method of filtration
  13. 22. reduces number of microbes; not pathogenic; living surfaces
  14. 25. removing microbes from air and liquids with membranes with pore openings