Immune System Quiz

What do neutrophil extracellular traps (NETs) do?

• Release cytokines

• Trap pathogens

• Produce antibodies

• Destroy red blood cells

Which enzyme is found in body fluids like saliva and tears to help protect the body by breaking down pathogens?

• Amylase

• Pepsin

• Lysozyme

• Trypsin

What is the process of immune cells passing through an intact blood vessel wall known as?

• Phagocytosis

• Diapedesis

• Apoptosis

• Endocytosis

Which enzyme is responsible for the production of nitric oxide (NO) in macrophages?

• Catalase

• Inducible nitric oxide synthase (iNOS)

• Lipase

• Amylase

Which cells are highly pro-inflammatory and effective at pathogen destruction?

• M1 macrophages

• M2 macrophages

• B cells

• T cells

What is the outermost layer of skin made of, which continuously sheds to prevent pathogen entry?

• Melanocytes

• Keratinocytes

• Fibroblasts

• Adipocytes

What do eosinophils contain that is crucial for their role in fighting infections?

• Antibodies

• Granules

• Lipids

• Carbohydrates

What do NK cells release to help stimulate macrophages?

• Interferon-gamma (IFN-γ)

• Interleukin-2 (IL-2)

• Mannose-binding lectins (MBL)

• C3a and C5a

What type of lymphocyte is involved in the rapid response of the innate immune system?

• NK cells

• B cells

• T cells

• Macrophages

Which cytokines can activate NK cells?

• Type I interferons and IL-12

• IL-4 and IL-10

• TNF-alpha and IL-6

• IL-1 and IL-8