Questions for Discussion

1. What are Nonspecific, constitutive and specific induced defences? Give an example for each.

2. By what means do the following body components defend against invading microorganisms? How are they the same and how are they different? Answer any three (3).
   • Skin
   • Mucous membrane
   • Normal flora
   • Mucin layer
   • MALT

3. How do the following inhibit invading microorganisms? How are they the same, and how are they different?
   • Stomach acid
   • Lactoferrin
   • Lysozyme
   • Lactoperoxidase

4. What role do the following play in the body defenses against Microorganisms? How do they interact with each other?
   • sIgA
   • Monocytes
   • Macrophages
   • Complement
   • Mannose-binding protein

5. How does the activation of complement by the classical and alternative pathways differ?

6. What characteristics might be in common and what characteristics might be unique in bacteria that infect:
   • The stomach
   • The small intestine

Updated January 1998

Copyright 1998 by Bruce E. Langlois

URL http://www.uky.edu/Agriculture/FoodScience/FSC632/Questions2.html