Immunology

1. / The enzyme found in HIV particles responsible for copying RNA into DNA.
4. / Are made of protein and can bind to complementary antigens.
8. / When antibodies bind to two pathogens and they clump together.
9. / Which immune response is slower whilst antibodies are made and the person will show symptoms.
11. / What is the name given to the types of drugs used to treat HIV.
12. / The type of immunity you get from being given antibodies made by a different organism.
14. / what is a call referred to when a cell like a macrophage sticks non-self antigens on its surface to activate other immune system cells.
19. / A term to describe when a B cell divides by mitosis into cloned plasma cells all producing identical antibodies.
20. / Is released by cytotoxic T cells which destroys targeted cells by creating lesions like pores in their membranes.
21. / What type of virus is HIV.
22. / What is the term used to describe when the people who have been vaccinated reduce the occurrence of the disease protecting those who have not yet been vaccinated.
23. / Which immune response is faster and stronger if the same antigen enters the body.
25. / A process where a type of white blood cells engulfs and digests a pathogen.
26. / Which cells kill cells infected with viruses, cancer cells or abnormal cells.

2. / Which cells secrete antibodies.
3. / The ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
5. / When antibodies bind to pathogens or toxins blocking their active sites and preventing them from doing any more harm.
6. / A type of phagocyte that carries out phagocytosis.
7. / Which type of ELISA test identifies the presence of antibodies.
10. / The type of immunity you get when your immune system makes its own antibodies after being stimulated by an antigen.
13. / Are cell surface membrane proteins that can generate an immune response when detected as non-self by the body.
15. / The study of the immune system.
16. / Which cells releases cytokines.
17. / Which cells are involved in the secondary immune response.
18. / What is the term given to describe when pathogens change their surface antigens and different strains develop.
24. / Are micro-organisms that cause disease, bacteria, fungi, protists and viruses.