Antigen-Presenting Cells Function to

question 13

Multiple Choice

Antigen-presenting cells function to

• A) display foreign antigen on their cell surfaces bound to MHC.
• B) stimulate cytokine production by macrophages.
• C) phagocytose and degrade foreign antigens.
• D) initiate the complement cascade by way of the alternative pathway.

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Definitions:

Increasing Opportunity Costs

The concept that as the production of one good is increased, the opportunity cost of producing additional units rises.

Production Possibilities Curve

A graph that shows the maximum possible output combinations of two goods or services an economy can achieve when all resources are fully and efficiently utilized.

Bowed Outward

Refers to the shape of a production possibility frontier that shows increasing opportunity costs as production shifts between two goods.

Absolute Advantage

A situation in which a nation, as the result of its previous experience and/or natural endowments, can produce more of a good (with the same amount of resources) than another nation can.