A CD8+ T Cell Binds to an Antigen Only If

question 27

Multiple Choice

A CD8+ T cell binds to an antigen only if this antigen is____.

• A) in a complex with a class I MHC protein
• B) in a complex with a class II MHC protein
• C) in a complex with a class III MHC protein
• D) not in a complex with MHC proteins
• E) presented on the surface of a B cell

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Definitions:

Explicit Costs

Direct payments made to others in the course of running a business, such as wage, rent, and materials.

Production Costs

The total expense incurred in manufacturing a product or providing a service, including raw materials, labor, and overhead costs.

Accounting Profit

The total revenue of a business minus its explicit costs, not including opportunity costs.

Opportunity Cost

The opportunity cost of an alternative is the profit you give up to pursue it.