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

1	Which of the following statement(s) about biochemical pathways is(are) TRUE?
	A)	they are very well organized and structured
	B)	they convert an initial substrate via a series of steps into an end product
	C)	they can only function for a few runs
	D)	A and B
	E)	A, B and C
2	Consider the biochemical pathway: A – E1 –> B – E2 –> C Enzyme 1 can utilize
	A)	only A as substrate.
	B)	only B as substrate.
	C)	both A and B as substrates.
	D)	neither A nor B as substrate.
	E)	either A or B as substrate, but not both.
3	Consider the biochemical pathway: A – E1 –> B – E2 –> C If Enzyme 2 is inactive, which of the following compounds will accumulate?
	A)	A only
	B)	B only
	C)	C only
	D)	A and B
	E)	B and C
4	In a biochemical pathway, the product of the first reaction becomes the substrate in the second reaction.
	A)	True
	B)	False
5	All biochemical pathways have the same number of enzymatic reactions.
	A)	True
	B)	False