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

1	Which of the following reactions are inhibited by bacitracin?
	A)	bactoprenol–phosphate -> bactoprenol + phosphate
	B)	bactoprenol + phosphate -> bactoprenol–phosphate
	C)	bactoprenol–diphosphate ->bactoprenol–phosphate + phosphate
	D)	bactoprenol–diphosphate -> bactoprenol + 2 phosphate
	E)	bactoprenol + 2 phosphate -> bactoprenol–diphosphate
2	Cycloserine
	A)	inhibits the synthesis of the precursor D-alanyl-D-alanine.
	B)	breaks down the D-alanyl-D-alanine portion of the pentapeptide side chain.
	C)	inhibits the formation of N-acetyl glucosamine.
	D)	prevents the binding of N-acetyl glucosamine to N-acetyl muramic acid.
	E)	blocks the transport of precursors out of the cytoplasm.
3	The enzyme _______ ensures bacterial cell wall rigidity by catalyzing the formation of cross-links between the peptide side chains of peptidoglycan.
	A)	translocase
	B)	transpeptidase
	C)	transglycosylase
	D)	decarboxylase
	E)	deaminase
4	Vancomycin prevents the formation of cross-links between peptide side chains.
	A)	True
	B)	False
5	Penicillin breaks existing peptidoglycan cross-links.
	A)	True
	B)	False