1. Describe the different types of immunoglobulins and their roles.

2. Explain the primary and secondary immune response to an antigen.

3. Describe antigen-antibody selection, recognition in humerol immunity. Same question in cell-mediated immunity.

4. What are antibodies and how do they work? How do they protect us?

5. Describe pathogenicity/pathogenesis.

6. Discuss possible damages created by bacteria.