Which immune response involves the body producing its antibodies after infection?

• A. Passive immunity
• B. Cell-mediated response
• C. Humoral immune response
• D. Autoimmune response

Answer: (C)

The humoral immune response is the correct choice as it specifically involves the production of antibodies by B cells in response to an infection. When the body detects pathogens such as bacteria or viruses, B cells are activated and differentiate into plasma cells, which then produce antibodies tailored to target those specific pathogens. These antibodies circulate in the bloodstream and help neutralize or eliminate the invaders.

This response is crucial for the adaptive immune system, as it not only helps fight off current infections but also contributes to immunological memory, allowing the body to respond more rapidly and effectively to future infections from the same pathogen. In contrast, passive immunity involves the transfer of antibodies from another source, such as from mother to baby, and does not involve the individual's own immune response. The cell-mediated response is primarily driven by T cells and focuses on the destruction of infected cells rather than the production of antibodies. Autoimmune responses occur when the immune system mistakenly attacks the body's own tissues, which differs fundamentally from the protective function of the humoral immune response.