IMMUNOLOGY

Detailed explanation-1: -The secondary antibody response is characterized in its first few days by the production of small amounts of IgM antibody and larger amounts of IgG antibody, with some IgA and IgE.

Detailed explanation-2: -Secondary Immune Response When these memory cells meet their specific antigen again, they rapidly proliferate and differentiate into plasma cells. These plasma cells then respond by producing abundant quantities of antibody to clear the antigen.

Detailed explanation-3: -B lymphocytes become cells that produce antibodies. Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response.

Detailed explanation-4: -In antibody responses, B cells are activated to secrete antibodies, which are proteins called immunoglobulins. The antibodies circulate in the bloodstream and permeate the other body fluids, where they bind specifically to the foreign antigen that stimulated their production (Figure 24-2).

Detailed explanation-5: -Because of the generation of memory cells, the secondary immune response is faster and stronger, leading to more effective pathogen elimination in comparison to the primary immune response.

Detailed explanation-6: -The type of virus or bacteria to which you are first exposed is the version your immune system will tend to remember the best. So when you are exposed to a second or third type of the pathogen, your immune system will react as if it is still recognizing the first type.