Concept explainers
(a)
To explain: The reason behind no antigen-antibody precipitate forms when Fab fragments from antibodies are mixed with the antigen.
Concept introduction: Antibodies are produced by the plasma cells and also known as immunoglobulins that help to remove the invading pathogen. The antibodies are also used for various purposes that include identifying or locating protein of interest and many more. The native proteins are antigens that are already present in the cell. The antigen is any molecule that triggers the immune system to elicit an immune response.
(b)
To explain: The reason behind no antigen-antibody precipitate forms when antibodies raised against a small antigen are mixed with that small antigen.
Concept introduction: Antibodies are produced by the plasma cells and also known as immunoglobulins that help to remove the invading pathogen. The antibodies are also used for various purposes that include identifying or locating protein of interest and many more. The native proteins are antigens that are already present in the cell. The antigen is any molecule that triggers the immune system to elicit an immune response.
(c)
To explain: The reason behind no antigen-antibody precipitate forms when the antibody is in great excess over the antigen and vice versa.
Concept introduction: Antibodies are produced by the plasma cells and also known as immunoglobulins that help to remove the invading pathogen. The antibodies are also used for various purposes that include identifying or locating protein of interest and many more. The native proteins are antigens that are already present in the cell. The antigen is any molecule that triggers the immune system to elicit an immune response.
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