T Cells That Respond Against Self-Antigens Are Inactivated By

question 27

Multiple Choice

T cells that respond against self-antigens are inactivated by:

• A) binding to immunoglobulin.
• B) intermediate-strength binding to self MHC.
• C) apoptosis.
• D) positive selection.

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Definitions:

Narcotic

A drug or other substance affecting mood or behavior and sold for nonmedical purposes, especially an illegal one.

Amphetamines

A class of stimulant drugs that affect the central nervous system, increasing alertness, concentration, and physical energy.

Epinephrine

Also known as adrenaline, it is a hormone and medication that plays a key role in the body's fight-or-flight response by increasing blood flow to muscles, output of the heart, pupil dilation, and blood sugar.

Endorphins

Neurotransmitters produced in the brain that act as natural painkillers and are also associated with feelings of pleasure.