Final Exam Study Guide AP III | Bio255 Essay Questions & Answers

Final Exam Study Guide AP III

Essay questions to know

1. What are innate and adaptive immune systems, how do they work, and how do they interact?  

      Ans: Adaptive immunity is the ability of the body to defend itself against specific invading agents

•  Antigens are substances recognized as foreign that provoke immune responses

•  An antigen is recognized and bound
•  A small number of T cells proliferate and differentiate into a clone of effector cells
• The antigen is eliminated

•  An antigen is recognized and bound
•  Helper T cells costimulate the B cell so the B cell can proliferate and differentiate into aclone of effector cells that produce antibodies
•  The antigen is eliminated

• We are born with this kind of immunity
• Two lines of defense: Nonspecific disease resistance fight a wide variety of invaders.

2. Describe the anatomy and functions of the spleen.