The Immune System

1. What is the co-receptor called that helps T cells communicate with macrophages?
4. What activates B cells, cytotoxic T cells and are engulfed by macrophages?
9. What are secreted by plasma cells and are involved in the humoral immune response by binding to antigens?
10. What are a mix an antibodies that bind to multiple epitopes called?
12. What cell phase are memory cells in when dormant?
13. What is another name for antibodies that has many different classes?
15. What kinase is recruited by CD4 to amplify its signal?
16. What is the name of the slower, specific type of immune response?

1. What is the name used to describe a duplicates of memory B cells or plasma cells?
2. How do antibodies inactivate pathogens by neutralisation, agglutination and precipitation of dissolved antigens?
3. What do Helper T cells stimulate in humoral immune responses?
5. What contains granules in their cytoplasm that can release antimicrobial agents, enzymes and toxic chemicals?
6. How many antigen binding sites does an antibody have?
7. What cells secrete antibodies that bind to antigens to make them easier targets for phagocytes?
8. What engulfs antigens when the body is first exposed?
11. Also known as antigenic determinant, what is the part of the antigen that that is recognised by antibodies?
14. What type of T cell stimulates B cells and cytotoxic T cells?