Which One of the Following Statements About Dendritic Cells Is

question 16

Multiple Choice

Which one of the following statements about dendritic cells is true?

• A)Immature dendritic cells are ubiquitously present in skin and mucosal tissues.
• B)Dendritic cell maturation occurs after migration to lymph nodes in response to signals derived from activated T cells.
• C)Class II MHC and T cell costimulators are highly expressed on immature dendritic cells and are down-regulated during maturation.
• D)Dendritic cells that enter lymph nodes through draining lymphatics migrate to the B cell-rich follicles in response to chemokines.
• E)The principal function of mature dendritic cells is antigen capture.

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Definitions:

Density Independent

Factors affecting the size of populations regardless of the population density, such as weather and climate.

Unpredictable Ways

Patterns or outcomes that are not able to be foreseen or predicted due to a wide array of influencing factors.

Density Dependent

Refers to factors whose effects on the size or growth of a population vary with the population density, such as competition for resources.

Density Independent

Referring to effects on population growth that occur regardless of the population density, such as environmental stress or climate changes.