BIOLOGY 221
Practice Quizzes - Resistance
J.E. Lathrop-Davis, Assistant Professor
CCBC Catonsville

1. What are three functions of complement?

   1. __________________________

   2. __________________________

   3. __________________________

2. List and describe 3 forms of nonspecific resistance other than complement.

   1. ___________________________________________________________________________________

   2. ___________________________________________________________________________________

   3. ___________________________________________________________________________________

3. _________________________ is a protein that protects against viruses and some forms of cancer.

4. __________________________ involves the activity of T cell lymphocytes that act directly against pathogens.

5. Regarding antibodies:

   1. __________________ immunity involves the production of antibodies.

   2. Antibodies are produced by __________________________.

   3. _____________________ occurs when antibodies combine with the antigen and block an active site.

   4. _________________________ occurs when antibodies form cross links between more than antigen resulting in clumping.

6. Regarding antigens:

   1. __________________________ means that a molecule is capable of activating the immune system.

   2. __________________________ are molecules too small to activate the immune system by themselves but may if conjugated to a larger molecule (usually a protein).

   3. The ________________________________ is the part of an antigen that results in activation of the immune system.

   4. The __________________________ occurs during the first encounter with an antigen.

   5. A __________________________ occurs when the antigen is encountered again (even years later).

7. What is the advantage of having a population of specific memory cells?

8. Which T cell subtype:

   1. ___________________ stimulates proliferation of other T cells but is not cytotoxic itself?

   2. ___________________ suppresses the immune system by limiting the activity of T cells and B cells?

   3. ___________________ are involved in type IV hypersensitivity?

   4. ___________________ act directly against antigens and lyse cells?

9. What role do macrophages play in specific immunity?

10. Regarding transplants:

1. __________________________ is a transplant from an individual of the same species.

2. __________________________ is a transplant from another species.

3. __________________________ is a transplant from another part of a person's body.

11. Give an example of each type of acquired immunity listed below:
    
    active, natural __________________________
    
    active, artificial __________________________
    
    passive, natural __________________________

12. __________________________ occurs when the immune system attacks the person's own body. An example of this type of disorder is: ________________________________