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Biology

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Question 9 of 13

9. The graph shows the effect of an enzyme on a reaction.

Which combination identifies X, Y and Z?

X                                                  Y                          Z

A	Catalyzed reaction	Uncatalyzed reaction	Activation energy
B	Catalyzed reaction	Uncatalyzed reaction	Energy lost during reaction
C	Uncatalyzed reaction	Catalyzed reaction	Energy gained by product
D	Uncatalyzed reaction	Catalyzed reaction	Overall energy change

D

C

A

B

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Question 11 of 13

11. Which graph shows the expected relationship between enzyme activity and substrate concentration?

B

A

D

C

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