Primary and Secondary Response of Adaptive Immunity definitions Flashcards

A type of immunity that develops as a response to exposure to an antigen, involving memory cells for future protection.

The initial, slower, and weaker immune response upon first exposure to an antigen, primarily producing IgM antibodies.

A faster and stronger immune response upon re-exposure to an antigen, primarily producing IgG antibodies.

Cells that remember past antigens and enable a faster and stronger immune response upon re-exposure.

Cells that persist after an infection and help in mounting a quicker immune response upon re-exposure.

The first class of antibodies produced in response to an initial antigen exposure, indicating a primary immune response.

A more effective class of antibodies produced during a secondary immune response, allowing for rapid pathogen elimination.

A substance that triggers an immune response, leading to the production of antibodies.

The process by which B cells change the type of antibody they produce, from IgM to IgG, for a more effective response.

Cells derived from B cells that produce antibodies to fight against antigens.

The ability of the immune system to respond more rapidly and effectively to pathogens that have been encountered previously.

An organism or substance capable of causing disease, targeted by the immune system.

The level of antibodies present in the blood serum, indicating the strength of an immune response.

The process of coming into contact with an antigen, triggering an immune response.

A subsequent exposure to the same antigen, leading to an even more effective immune response than the secondary response.