An experiment was planned to investigate the effect of the enzyme, amylase, on starch - HSC - SSCE Biology - Question 9 - 2010 - Paper 1
Question 9
An experiment was planned to investigate the effect of the enzyme, amylase, on starch. The following combination of test tubes was considered.
5 mL starch + 1 mL wa... show full transcript
Worked Solution & Example Answer:An experiment was planned to investigate the effect of the enzyme, amylase, on starch - HSC - SSCE Biology - Question 9 - 2010 - Paper 1
Step 1
Experiment
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Answer
The experiment should test the effect of amylase on starch. Therefore, test tube X (5 mL starch + 1 mL amylase) is used for the experiment.
Step 2
Control
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Answer
For a valid control, we need a setup that does not contain the variable we are testing, which in this case is the amylase. Thus, test tube W (5 mL starch + 1 mL water) serves as the control.
