15Quizzes
Immunology
Explore the body's intricate defense system. Our immunology quizzes cover the innate and adaptive immune systems, B-cells, T-cells, antibodies, and the complex signaling that protects you from pathogens. How strong is your knowledge?
Immunoglobulin Classes
Identify the parts of an immunoglobulin molecule and the unique roles of IgG, IgA, IgM, IgE, and IgD.
Hypersensitivity & Allergies
Understand the four types of hypersensitivity reactions, from immediate allergies to delayed-type responses.
Autoimmunity & Immunodeficiency
Covers the failure of self-tolerance in diseases like Lupus, and primary vs. secondary immunodeficiencies like AIDS.
T-Cell Subsets & MHC Restriction
A deep dive into CD4+ Helpers, CD8+ Cytotoxics, and how MHC Class I and II present antigens to them.
Organs of the Immune System
Identify primary and secondary lymphoid organs, including the bone marrow, thymus, spleen, and lymph nodes.
B-Cell Development & Activation
How do B-cells mature and produce antibodies? Covers clonal selection, plasma cells, and memory B-cells.
Innate Immunity: First Line of Defense
Explore the non-specific defense mechanisms including physical barriers, phagocytosis, and the inflammatory response.
The Complement System
Master the classical, alternative, and lectin pathways, and the formation of the Membrane Attack Complex (MAC).
Immunoassays: ELISA & Flow Cytometry
Master the laboratory techniques used to detect antigens and antibodies, and to sort immune cell populations.
Vaccine Technology & Types
Test your knowledge on live-attenuated, inactivated, subunit, and modern mRNA vaccine platforms.
MHC & Antigen Presentation
How T-cells recognize antigens.
Cells of the Immune System
Identify T-cells, B-cells, macrophages, and neutrophils.
Innate vs. Adaptive Immunity
Compare the two major branches of the immune system.
Antibody Structure & Function
Explore the five classes of immunoglobulins (IgG, IgM, etc.).
Hypersensitivity & Autoimmunity
When the immune system attacks itself or overreacts.
Articles
Read About Immunology
Long-form articles on the same ground as these quizzes.
Dictionary
Key Immunology Terms
Plain definitions, with how to say each word and where it comes from.
- Adaptive immunity
Adaptive immunity is the branch of the immune system that learns to recognize specific antigens and remembers them, so it responds faster next time.
- Allergy
An allergy is an immune overreaction to a normally harmless substance, such as pollen or peanuts, driven mainly by IgE antibodies and mast cells.
- Antibody
An antibody is a Y-shaped protein made by B cells and plasma cells that binds tightly to one specific antigen and helps the body destroy it.
- Antigen
An antigen is any molecule the immune system can recognize as a target, especially one that prompts antibodies or T cells to respond against it.
- Autoimmunity
Autoimmunity is an immune response wrongly directed at the body's own healthy cells and tissues, and it is the cause of autoimmune diseases.
- B cell
A B cell is a lymphocyte, a kind of white blood cell, that produces antibodies and forms a key part of the adaptive immune system.
3D molecules
See Immunology in 3D
Real structures to turn and explore, every part explained and linked to its definition.
- Antibody in 3D
A Y-shaped protein of the immune system: two arms that bind a target, and a stem that calls in the cells and proteins that destroy it.
Career
Where Immunology Leads
Careers that use it: what each job is, how people get in and what it pays.
- Biomedical Scientist
Tests blood, tissue and other samples in hospital labs to help doctors diagnose disease, choose treatment and check that it is working.
- Microbiologist
Studies bacteria, viruses, fungi and other microbes to diagnose infections, keep medicines and food safe, and put microbes to useful work.
- Biomedical Research Scientist
Investigates the causes of human disease and looks for better ways to diagnose, treat and prevent it, through lab and clinical research.
- Epidemiologist
Studies how disease spreads and who it affects, finding causes and risk factors so health services can prevent and control illness.
- Health Promotion Specialist
Designs and runs programmes that help people and communities stay healthy, from stop-smoking schemes to sexual and mental health campaigns.
- Medical and Science Writer
Writes clear, accurate material about science and medicine, from patient leaflets and news stories to clinical trial documents.
Research
Calculators for Immunology
Free, with the formula and a worked example for each.
- Serial Dilution Calculator
The volume to transfer, the diluent for each tube and the concentration in every tube of a dilution series.
- Hemocytometer Calculator
Cells per mL, viability with trypan blue, total cells and the volume to seed, from a hemocytometer count.
- Dilution Calculator
How much stock to dilute, or the final concentration or volume, with C₁V₁ = C₂V₂.
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Related Disciplines
Subjects close to Immunology, each with its own set of quizzes.
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