Review the animation and answer the questions that follow to test your understanding.

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