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Yeast cells contain the enzyme catalase which breaks down hydrogen peroxide to produce oxygen - Scottish Highers Biology - Question 5 - 2018
Question 5
Yeast cells contain the enzyme catalase which breaks down hydrogen peroxide to produce oxygen. An experiment was carried out into the effect of lead nitrate concentr... show full transcript
Worked Solution & Example Answer:Yeast cells contain the enzyme catalase which breaks down hydrogen peroxide to produce oxygen - Scottish Highers Biology - Question 5 - 2018
Step 1
Identify the independent variable in this experiment.
Answer
In this experiment, the independent variable is the concentration of lead nitrate. This is because the concentration of lead nitrate is the factor that was deliberately altered in the experiment to observe its effect on the activity of catalase, which is reflected in the volume of oxygen produced.