Portage Learning: Microbiology Module 5 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

Portage Learning: Microbiology Module 5 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What type of immunity is developed after recovering from a viral infection? Natural active immunity What type of immunity is passed from mother to baby through breast milk? Natural passive immunity What type of immunity is gained through vaccination? Artificial active immunity What type of immunity involves receiving antibodies through an injection? Artificial passive immunity What is the primary function of B cells in the immune system? Producing antibodies 2 What type of lymphocyte is responsible for killing infected cells directly? Cytotoxic T cell What type of T cell helps activate both B cells and other T cells? Helper T cell What do plasma cells produce in response to antigens? Antibodies What is the term for a substance that stimulates an immune response? Antigen What class of antibodies is most abundant in the bloodstream? IgG What class of antibodies is primarily found in secretions like saliva and tears? IgA 3 What class of antibodies is involved in allergic reactions? IgE What immune system cells are involved in the initial recognition of pathogens? Macrophages What is the role of memory B cells? To remember antigens for faster future responses What is the term for the immune system attacking its own tissues? Autoimmunity What is the process by which phagocytes engulf and digest pathogens? Phagocytosis What type of white blood cell is the first responder during inflammation? Neutrophil 4 What process allows immune cells to leave blood vessels and enter infected tissues? Diapedesis What chemical is released by cells to attract immune cells