View the animation below, then complete the quiz to test your knowledge of the concept.

1	Which of the following are needed for antibody production to occur with T cell dependent antigens?
	A)	antigen presenting cell
	B)	T helper cell
	C)	B cell
	D)	b and c
	E)	a, b, and c
2	An antigen presenting cell presents antigen to a T helper cell
	A)	inside a vesicle
	B)	on its surface on a class I MHC
	C)	on its surface on a class II MHC
	D)	on its surface attached to an antibody
3	A T helper cell becomes activated by a
	A)	plasma cell
	B)	antigen presenting cell
	C)	B cell
	D)	memory cell
4	A T helper cell must become activated before it can stimulate a B cell to produce antibody.
	A)	True
	B)	False
5	Protein is usually a T-cell dependent antigen.
	A)	True
	B)	False