Which One of the Following Statements About Humoral Immune Responses

question 2

Multiple Choice

Which one of the following statements about humoral immune responses is true?

• A) Naive B cells are required for initiation of primary responses and memory B cells are required for initiation of secondary responses.
• B) Antibody responses to bacterial polysaccharide antigens require CD4+ helper T cells.
• C) Heavy chain isotype switching typically occurs in response to bacterial polysaccharide antigens.
• D) Affinity maturation does not require helper T cells.
• E) Antibody-secreting cells generated during a humoral immune response live for only a few hours.

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Definitions:

Consumer Surplus

The difference between the potential total payment by consumers for a product or service and the actual total payment they make.

Producer Surplus

The difference between the amount that producers are willing and able to sell a good for and the actual amount they receive.

Price Elasticity

An indicator of the degree to which demand for a product reacts to variations in its price, showing how sensitive the demand for the good is to price alterations.

Price Discrimination

A method of setting prices where a provider charges different amounts for the same or almost the same items or services to different customers or in various locations.