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

1.			Which viral receptor is involved in HIV attachment to the host cell?
			A)	gp41
			B)	gp120
			C)	p24
			D)	p17
			E)	all of the above
2.			In order for HIV to attach, the host cell must have
			A)	a CD4 antigen receptor and a cell specific co-receptor
			B)	a gp120 receptor
			C)	a CD4 receptor and a nonspecific universal receptor
			D)	a CD8 receptor and a specific co-receptor
3.			Protease enzyme
			A)	makes DNA from single-stranded RNA
			B)	integrates viral DNA into host genome
			C)	cleaves poly-protein into individual functional viral proteins
			D)	helps the virus attach to the host cell
4.			HIV core contains gp120 and gp41.
			A)	True
			B)	False
5.			When viral DNA is integrated into the host cell chromosome, it is called proviral DNA or a provirus.
			A)	True
			B)	False