BHS 316 Exam 1

5. Hormone-like messengers that facilitate communication between cells of the immune system.
6. Region of antibody that binds to an antigen
8. Protein that is able to bind to carbohydrate molecule.
9. Cells of the immune system are ____.
10. T-Cell that destroys virus-infected cells.
16. Defense system that can adapt to protect us against any invader.
17. Second line of defense of the immune system.
18. Are not antigen-presenting cells.
19. Activation pathway that is more strategic activating the complement cascade.

1. Cell that doubles in size and divides into 2 daughter cells.
2. C3bBb molecule.
3. Process that cells use to surround and engulf invaders & use enzymes to break them down.
4. Different proteins that work together to destroy invaders & signal other immune system players.
5. Most abundant complement protein.
7. T-Cell that directs action by secreting cytokines.
8. Provides protection against invaders.
11. Immune cells that mature in the thymus.
12. Barriers that are the first line of defense against invaders.
13. Protein that prevents the incorporation of C9 molecnascentto mascent MACs.
14. T-Cell that keeps immune system from overreacting.
15. Defender cell in the innate immune system.