Question

1. The first layer of protection is:
   1. Antimicrobial peptides.
   2. Skin.
   3. Macrophages.
   4. B cells.
2. Which complement pathway generates the membrane attack complex (MAC)?
   1. Lectin pathway.
   2. Classical pathway.
   3. Alternative pathway.
   4. All of the above.
3. Antibodies function by:
   1. Neutralization.
   2. Opsonization.
   3. Complement activation.
   4. All of the above.
4. The function of the variable region of the antibody is to:
   1. Signals through B cell receptor.
   2. Binds to antigens.
   3. Binds to Fc receptors.
   4. Both a and c.
5. B cells develop in the:
   1. Blood.
   2. Bone.
   3. Thymus.
   4. Tissues.
6. Compare and contrast innate and adaptive immunity (List 5).

Answer 1

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