Electrolysis Practice Exam

Which cell type is primarily involved in the body's immune response?

1. Platelets

2. Red blood cells

3. White blood cells

4. Stem cells

The correct answer is: White blood cells

White blood cells are the primary players in the body's immune response. They are specifically designed to identify, target, and eliminate pathogens such as bacteria, viruses, and other foreign invaders. Various types of white blood cells, including lymphocytes, neutrophils, and monocytes, work together to provide both immediate and long-lasting immunity. This functionality is crucial, as white blood cells not only respond to infections by attacking pathogens directly but also facilitate the production of antibodies that help in recognizing and neutralizing harmful agents in future encounters. This adaptability and specificity are what make the immune system effective in protecting the body from a wide range of diseases. In contrast, platelets are primarily involved in blood clotting, red blood cells are responsible for transporting oxygen, and stem cells are undifferentiated cells with the ability to develop into various types of cells in the body, but they do not have a direct role in immune responses.