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Introduction to Immunology

Immunology

Basic concepts and components of the immune system.

immunity immune system biology science

15 Questions Easy Ages 5+ Aug 2, 2026

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About this Study Set

This study set covers Immunology through 15 practice questions. Basic concepts and components of the immune system. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Introduction to Immunology study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which of the following is a type of white blood cell crucial for the immune response?

A Red blood cell
B Platelet
C Neuron
D Lymphocyte

2 What is the primary role of antibodies in the immune system?

A Transport oxygen
B Clot blood
C Neutralize pathogens
D Transmit nerve signals

3 Which organ is considered a primary lymphoid organ where immune cells mature?

A Liver
B Kidney
C Thymus
D Stomach

4 The innate immune system is characterized by being:

A Specific and has memory
B General and non-specific
C Slow to respond
D Acquired after exposure

5 A substance that triggers an immune response is called a(n):

A Antibody
B Enzyme
C Antigen
D Hormone

6 Which type of immune cell is responsible for engulfing and digesting foreign particles?

A T helper cell
B B cell
C Phagocyte
D Mast cell

7 Vaccination works by introducing a weakened or inactive form of a pathogen to stimulate which type of immunity?

A Innate immunity
B Passive immunity
C Active immunity
D Cellular immunity

8 The adaptive immune system is characterized by being:

A General and non-specific
B Rapid and immediate
C Specific and has memory
D Present from birth

9 Which of the following is an example of a secondary lymphoid organ?

A Bone marrow
B Thymus
C Spleen
D Adrenal gland

10 Inflammation is a key part of which immune response?

A Adaptive immunity
B Innate immunity
C Humoral immunity
D Autoimmunity

11 What do B cells produce in response to an infection?

A Cytokines
B Phagocytes
C Antibodies
D Antigens

12 Which of the following is a type of T cell that helps regulate the immune response?

A Red blood cell
B Platelet
C Neutrophil
D T helper cell

13 The body's first line of defense against pathogens includes:

A Antibodies
B Vaccines
C Skin and mucous membranes
D Inflammation

14 A condition where the immune system attacks the body's own tissues is known as:

A Allergy
B Immunodeficiency
C Autoimmune disease
D Infection

15 How do antibodies primarily work to neutralize pathogens?

A By directly killing them
B By marking them for destruction
C By blocking their entry into cells
D By stimulating fever

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