NR 283 Immunity (pre)

Which of the following cells is primarily responsible for the cell-mediated immune response?

• B lymphocytes

• T lymphocytes

• Neutrophils

• Macrophages

What is the role of memory cells in the immune system?

• They produce antibodies during the primary immune response.

• They enhance the activity of phagocytes.

• They provide a faster and stronger response upon re-exposure to the same antigen.

• They are responsible for the initial recognition of pathogens.

Which type of immunity is acquired through vaccination?

• Natural active immunity

• Natural passive immunity

• Artificial active immunity

• Artificial passive immunity

What is the primary function of the complement system in the immune response?

• To produce antibodies

• To enhance phagocytosis and inflammation

• To directly kill infected cells

• To present antigens to T cells

In which type of hypersensitivity reaction do IgG or IgM antibodies bind to antigens on cell surfaces, leading to cell destruction?

• Type I hypersensitivity

• Type II hypersensitivity

• Type III hypersensitivity

• Type IV hypersensitivity