Workbook Blood And The Immune System Page 7

Use the graph to answer the next three questions.

7. Explain what is happening in the graph.

First exposure, B cells are making antibodies for the first time so the

response is slow and weak.

Second exposure, the memory B cells remembered the invader, and instructed

the B cell to make more antibodies at a faster rate for a faster, stronger

response.

8. Compare how long the body took to produce antibodies after the first

exposure to how long it took after the second exposure.

(see above)

9. Compare the quantity of antibodies from the first exposure to the second

exposure.

(see above)

10. What are allergies?

An allergy is a mistake by the immune system in which a harmless agent is

identified as being harmful. The immune system’s overreaction becomes

dangerous.

11. What causes an autoimmune disease?

The immune system attacks cells of the body as if they were foreign

invaders. Many researchers believe that most people have mutated T cells

0 votes

Parent category: Education