Cytotoxic T Cells

question 20

Multiple Choice

Cytotoxic T cells

• A) directly kill viruses.
• B) kill cells that are infected by viruses.
• C) cause B cells to proliferate when they are bound to their antigen.
• D) bind to B cells and then to infected cells.

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Definitions:

Electrons

Subatomic particles with a negative charge, orbiting the nucleus of an atom and involved in chemical bonds and electricity.

Oxidation

A chemical reaction involving the loss of electrons or an increase in oxidation state by a molecule, atom, or ion.

Lactose Intolerant

A condition where the body cannot easily digest lactose, a type of sugar found in milk and dairy products.

Lactase

An enzyme found in the small intestine necessary for the digestion of lactose, the sugar found in milk.