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

1.			Superantigens
			A)	bind specifically to T helper cell receptors
			B)	bind without antigen specificity to the outer portion of T helper cells and antigen presenting cells (APCs)
			C)	are bound inside specific MHC II antigens on APCs
			D)	bind to about 1 in 10,000 T cells
			E)	do not stimulate as many T helper cells as do antigens that bind with greater specificity
2.			Superantigens are produced by
			A)	superantibodies
			B)	Staphylococcus aureus in T cell dependent cytolysis
			C)	Staphylococcus aureus in toxic shock syndrome
			D)	E. coli in toxic shock syndrome
			E)	cells infected with specific viruses
3.			Possible symptoms of toxic shock syndrome include
			A)	fever
			B)	diarrhea
			C)	nausea and vomiting
			D)	shock
			E)	all of the above
4.			Toxic shock syndrome is a mild disease similar to other mild allergic reactions.
			A)	True
			B)	False
5.			Superantigens are processed by antigen presenting cells.
			A)	True
			B)	False