Immunity: Chapter 08, Specialized Lymphocytes in Early Responses and Homeostasis

Which of the following activate(s) marginal zone B cells?

	a)	encapsulated bacteria
	b)	dendritic cells
	c)	BAFF
	d)	C3b
CorrectWrong: a, b and c are correct.Your answer has been saved.

Which of the following statements are true?

	a)	The marginal zone B cell lineage diverges from the other lineages early, at the hematopoietic precursor stage.
	b)	The differentiation of marginal zone B cells requires suppression of Notch2.
	c)	Marginal zone B cells have some of the characteristics of activated B cells before they encounter antigen.
	d)	Marginal zone B cells play an important part in protection from bacterial infection in the early months of life in humans.
	e)	Naïve T cells can be activated by marginal zone B cells.
	f)	Complement binding to CR2 on marginal zone B cells stimulates migration to the follicles.
CorrectWrong: c, e and f are true.Your answer has been saved.

Which of the following properties of marginal zone B cells is/are important in promoting germinal center responses?

	a)	Expression of B7 on activation.
	b)	Localization in the spleen.
	c)	Early production of antibodies.
CorrectWrong: b and c are correct.Your answer has been saved.