Human Biology

http://www.ck12.org Chapter 1. Human Biology

Summary

• B cells produce antibodies against pathogens in the blood and lymph.


• Killer T cells destroy body cells infected with pathogens.

Practice

Use the resource below to answer the questions that follow.

• Specific Immunityat http://www.dnatube.com/video/194/Specific-Adaptive-immunity-humoral-and-cell-med
  iated (1:20)

MEDIA

Click image to the left for more content.

1. What does specific immunity mean? How is it different from general immunity? How are both types useful to
   the body?


2. What cells are involved in the body’s humoral immune response?


3. How do macrophages educate T-cells? How do they accomplish this communication?


4. What do killer T-cells differentiate into? How does this help the body long term?


5. What do B-cells differentiate into? What is the function of these differentiated cells?

Review

1. Explain how B cells help fight infections.


2. How do killer T cells fight pathogens?