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

1	What function do many B vitamins serve in the production of energy?
	A)	they function as enzymes
	B)	they function as co-enzymes
	C)	they function as energy sources
	D)	they function as hypoenzymes
2	Enzymes assist in the occurrence of reactions by
	A)	lowering of activation energy.
	B)	raising of activation energy.
	C)	providing ATP.
	D)	using ATP.
3	In the example shown, what co-enzyme is used to assist in the production of ATP from pyruvate?
	A)	green co-factor
	B)	carbon dioxide
	C)	thiamine pyrophosphate
	D)	an apoenzyme
4	Consuming B vitamins in excess of need will
	A)	decrease formation of energy (ATP).
	B)	increase formation of energy (ATP).
	C)	increase rate of muscle formation.
	D)	increase B vitamins in urine.
5	Which B vitamin is found in egg yolk (and other foods) and functions as part of Coenzyme A?
	A)	riboflavin
	B)	niacin
	C)	pantothenic acid
	D)	biotin