Question

a student wants to test the hypothesis that an acidic environment will decrease enzyme activity. in the experiment, the student used an enzyme that breaks down hydrogen peroxide into water and bubbles of oxygen. to test the hypothesis, the student should collect data on the number of oxygen bubbles produced at different
1 temperatures
2 ph levels
3 enzyme concentrations
4 concentrations of hydrogen peroxide
submit retry answer

Explanation:

The hypothesis is about the effect of an acidic environment (related to pH) on enzyme activity. To test this, the independent variable (the factor being changed) should be pH levels. By varying pH levels and observing the number of oxygen bubbles (a measure of enzyme activity as the enzyme breaks down hydrogen peroxide), the student can determine if acidity (pH) affects enzyme activity. Other options like temperature (1) would test a different variable (heat effect), enzyme concentration (3) would test how much enzyme affects activity, and hydrogen peroxide concentration (4) would test substrate amount effect. But the hypothesis is specifically about an acidic (pH - related) environment.

Answer:

1. pH levels