COMBINED SCIENCE 0653/11 45 minutes

A 1, 2 and 4 B 1, 3 and 4 C 1 and 2 only D 1 only 3 Which row identifies the graphs that show the effect of temperature and the effect of pH on an enzyme-controlled reaction? rate of reaction rate of reaction rate of reaction 123 temperature pH A graph 1 graph 2 B graph 2 graph 3 C graph 1 graph 3 D graph 3 graph 2 4 What helps maintain healthy ... ................
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