immune system
It identifies and responds to infections and abnormal cells. This topic is part of Human Body within Science & Nature. This page currently draws on 16 supporting questions, with answers and bonus facts available below.
immune system trivia questions
The immune system protects the body from what?
Answer: Pathogens
Bonus fact: It identifies and responds to infections and abnormal cells.
Which blood cells are central to immune defense?
Answer: White blood cells
Bonus fact: Leukocytes include lymphocytes, neutrophils, and others.
What type of immune cells mature in the thymus?
Answer: T cells
Bonus fact: T lymphocytes develop in the thymus.
An allergy occurs when the immune system reacts to a substance that is normally what?
Answer: Harmless to most people
Bonus fact: Common allergens include pollen, certain foods, dust mites, and animal dander.
What feature lets the adaptive immune system respond faster to a pathogen encountered again?
Answer: Immunological memory
Bonus fact: Memory cells persist after an initial response.
What normally prevents the immune system from attacking healthy self-tissues?
Answer: Immune tolerance
Bonus fact: Tolerance mechanisms eliminate or control self-reactive cells.
Vaccines can contain weakened, inactivated, or partial forms of what?
Answer: Pathogens or their components
Bonus fact: Exposure teaches the immune system without causing the full disease.
An autoimmune response mistakenly targets what?
Answer: The body's own tissues
Bonus fact: The immune system loses tolerance to self-antigens.
Rheumatoid arthritis is an example of what kind of condition?
Answer: Autoimmune disease
Bonus fact: The immune system attacks joint tissues.
What is a major challenge after an organ transplant?
Answer: Immune rejection
Bonus fact: The immune system can recognize donor tissue as foreign.
An mRNA vaccine delivers instructions for cells to make what?
Answer: A target antigen
Bonus fact: The immune system responds to the produced antigen.
Which blood cells help the body fight infections?
Answer: White blood cells
Bonus fact: White blood cells are an important part of the immune system.