Northern Virginia Community College

BIO 150

1)Definitions-immunity, pathogen, antigen, hapten

2. What is meant by self and non-self antigens?

3. Types of Immunity – Non-specific and Specific Immunity, how do they differ.

4. What are the components and functions of the lymphatic system? What are the functions of lymph nodes?

5. Where are the stem cells that produce lymphocytes present? Where do T and B lymphocytes mature?

6. Non-specific/Innate Immunity

What forms the first line of defense (physical barriers, chemical barriers)

What forms the second line of defense? (white blood cells, natural killer cells, inflammation, fever, antimicrobial substances like interferons, defenssins, collectins & complement system)

How do complement proteins function?

7. Specific/Adaptive/Acquired Immunity

How do Helper T cells recognize antigens (antigen-presenting cells & MHC proteins)?

8. Mechanism of Immunological memory – Primary response & secondary response

9. Classification of Acquired Immunity – Naturally Acquired Active & Passive Immunity and Artificially Acquired Active & Passive Immunity

10. Allergic reactions – why are allergic reactions considered harmful immune responses, symptoms & examples of allergic reactions

11. Chemicals released during an allergic reaction that are responsible for the symptoms

12. What is meant by autoimmune diseases. Know some examples.

13. What are the target cells where HIV multiples?