Adaptive Immunity

Front

What is the immunoglobulin class that has a dimer form found in mucus, saliva, colostrum, and other body secretions?

Back

IgA

Front

What are antigen-presenting cells?

Back

Cells that include dendritic cells and present antigens to T cells.

Front

What role do cell surface markers play in immune reactions?

Back

They are involved in recognition of self molecules, receive and transmit chemical messages, and are the result of genetic expression.

Front

What was Edward Jenner's contribution to immunology?

Back

He developed immunization using a related, less pathogenic organism to give protection against a more pathogenic one.

Front

What is the primary function of Helper T cells?

Back

They activate B cells and other T cells.

Front

What is the function of IgE antibodies?

Back

IgE antibodies are primarily involved in allergic reactions and defense against parasitic infections.

Front

What is the role of B cells in adaptive immunity?

Back

B cells produce antibodies that target specific antigens.

Front

What is the difference between active and passive immunity?

Back

Active immunity is developed through exposure to antigens, while passive immunity is acquired through the transfer of antibodies.

Front

What is the significance of memory cells in the immune response?

Back

Memory cells provide long-term immunity by remembering past infections.

Front

What is the function of cytotoxic T cells?

Back

Cytotoxic T cells directly destroy infected or cancerous cells.