BI-2161
Planning an investigation
Biology · Secondary 4 · Medium · Planning an investigation
A student wants to investigate the effect of pH on the activity of an enzyme.
Which set of test tubes is most suitable?
A. Tubes with enzyme only at pH 3, 7 and 11
B. Tubes with enzyme and substrate at pH 3, 7 and 11, all at 25 °C
C. Tubes with enzyme and substrate at pH 7, at 20 °C, 30 °C and 40 °C
D. Tubes with substrate only at pH 3, 7 and 11
Which set of test tubes is most suitable?
A. Tubes with enzyme only at pH 3, 7 and 11
B. Tubes with enzyme and substrate at pH 3, 7 and 11, all at 25 °C
C. Tubes with enzyme and substrate at pH 7, at 20 °C, 30 °C and 40 °C
D. Tubes with substrate only at pH 3, 7 and 11
- A
- B
- C
- D
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