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Controlling microbial growth webquest name
- 2. What was the first type of antispeptic used in hospitals (chemical group)? What types of chemicals are more commonly used today?
- 3. What is chlorhexidine? Draw the structure and give an example of where it is commonly found.
- 5. What is hypochlorate? List three common uses of hypochlorate. At which pH and temperature are they most efficient and why?
- 6. Define bacteriocidal and bacteriostatic
- 7. Visit the following website:
- 9. Watch the slideshow and then try the activities.
- 10. Summarise the process of pasteurization below.
- 11. Have a look at this website
- 13. What is gamma radiation used for? Why do you think its use is controversial?
- 14. Visit the following website
- 16. Use the website to define the following key terms and ideas:
- 17. Culture media:
- 18. Agar:
- 19. Culture:
- 20. Streak plate:
- 21. Lawn:
- 22. Watch the animation on streaking and then try it yourself here! http://learn.chm.msu.edu/vibl/content/streakplate.html
- 23. “Viruses are obligate parasites” Explain how culturing viruses in a lab is different to culturing bacteria in a lab.
- 24. Counting cells
- 28. Describe how microbiologists use turbidometry to assesss microbial contamination of waater.