Immune System

1)     Compare and contrast "non-specific" and "specific" immune defenses.

2)      What is an antigen?  How are antigens used by the immune system of the host organism?  What functions if any might these molecules have to the cell's that possess them?

2)     Discuss the following for humoral immunity

3)      What is a vaccine?  How does it work? Is this an example of acquiring active or passive immunity?  Explain.  Why hasn't a vaccine been developed that will universally confer immunity to the flu or the common cold?

4)      In most cases the immune system is prepared for an attack by potential pathogens, even for those that your body has never encountered.  This is one reason why we recover from most pathogenic infections.   How does the immune system acquire this ability?

7)      Discuss the following for the cell mediated immune response:

8)     Erythrocytes lack MHC proteins.  What are the some of the antigens on these cells that allow the body to distinguish them from non self cells?   List all of the possible blood types.  Without considering other antigens in blood, which of these blood types could be considered a universal donor of blood and why?  A universal receiver, and why?

9)     Discuss the following for AIDS: