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