B cells and antibodies are an important part of the immune system. B cells produce antibodies that detect and bind to antigens like bacteria and viruses. There are several laboratory tests that can detect antibodies, including ELISA, the agglutination test, and the fluorescence antibody test. These tests help identify the presence of specific antibodies that can indicate an immune response or disease.

1. B
cell
B cell & Antibody
Radwan Rushdi Mohammed
Rebwar Adil Ismael
AbdullahYasin Bakir
Rebaz Sabah Salah
Rawand Dler Mohammed
Prepared by:
Ms. Sevan Hassan
Supervised by:
B
cell

7. Class Switching

9. Antigen Binding Site

11. M.A.G.E.D

13. Detecting Antibodies with Laboratory Tests
1- Enzyme-linked
immunosorbent assay
(ELISA)

14. Detecting Antibodies with Laboratory Tests
2 - The agglutination
test
3- The fluorescence
antibody test
Antigen
Bacteria
Anti-bacterial antibody
labeled with fluorescent
dye
Negative
Positive