9th Grade Autoimmunity Quizzes , Questions & Answers

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Immune Tolerance Quiz: Distinguishing Self from Non-Self

This assessment explores immune tolerance, focusing on how the immune system distinguishes between self and non-self. It evaluates key concepts such as the roles of T cells and B cells, negative and positive selection, and the...

Questions: 20 | Attempts: 28 | Last updated: Mar 6, 2026

Sample Question 1
What is the primary definition of immune tolerance in the human body?

The ability of the immune system to ignore the body's own healthy cells

The ability to eat any kind of food without getting sick

The process of white blood cells becoming stronger over time

The body's way of accepting all germs as friends

A method for the brain to control the heart rate

Sample Question 2
Major histocompatibility complex (MHC) markers act like "ID badges" that help the immune system identify a cell as "self."

True

False

Sample Question 3
What happens during "negative selection" in the thymus?

T cells that react too strongly to the body's own proteins are destroyed

T cells are given extra weapons to fight viruses

T cells are told to leave the body immediately

T cells are turned into red blood cells

T cells are taught how to produce stomach acid

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