| Antigen |
Antibody |
| 1. Antigens are foreign proteins which are capable of producing infection. |
1. Antibodies are immunoglobulins produced by the body to act against the antigens. |
| 2. The structure of antigens is variable dependent upon the type of pathogen. |
2. The structure of antibody is Y-shaped. |
| 3. The antigen is the ‘non-self’molecule |
3. The antibody is ‘self’ molecule. |
| 4. The antigens have epitope sites which bind with the antibody molecule. |
4. The antibodies have paratope sites which bind with the antigen molecule. |
