1. Answers will vary.
2 a. Helper T cells
b. Mast cells
c. Mast cells
d. Nerve message receptors
3 a. Mast cells are mentioned in a number of places in this chapter. Therefore, several answers are possible.
b. Macrophages form the clean up committee, engulfing bacteria and other debris.
c. Cytotoxic T cells attack nonself cells.
d. Helper T cells activate both other T cells and B cells.
e. B cells produce the antibodies.
How the students describe the interactions will vary.
4. Answers will follow text but may be in varied order.
5. Answers will vary.
6. The body is overreacting; the body is not recognizing self.
7. An allergic reaction can be an overproduction of histamine. A histamine blocker would do just that.
8. Probably some type of anaphylactic reaction.
9. Stimulates antibody production.
10. Polyclonals can attack many things. Monoclonal will attack just one thing.
TO THINK ABOUT
1. Answers will vary. Recall how organisms and proteins react to heat.
2. Answers will vary.
3. Based on the information given, it is probably an autoimmune disorder.
4. Answers will vary.
5. Answers will vary.
6. Answers will vary.
7. Cartilage does not seem to produce any antiviral agents. The shark's resistance must come from other sources.
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