Testing the Specificity of Antibodies
Students determine the specificity of antibodies to antigens. For this immune system and antibodies lesson plan, students use a Strep A diagnostic kit to test how the Strep A antibody reacts to the antigen found in the cell wall of the bacterium Streptococcus A. They also test Streptococcus group C and a sample from the table top to see how they react to the antibody for Strep A. Students analyze their results.