Respuesta :
Answer:
a. The initial concentration of the substrate
Explanation:
If the researcher keeps the initial concentration of the substrate constant, it will give room to compare the reaction rates under different environmental conditions. The reaction rates will assist the researcher by providing the researcher with the necessary and important information about the enzyme's function in different environments.
The initial concentration of the substrate must remain the same for all trials in this experiment.
CONSTANT VARIABLE:
- In an experiment, there are two variables to watch out for. They include the independent and dependent variables.
- The independent variable is the variable that is changed by the experimenter and this is the different temperature used for the enzyme in this case.
- The dependent variable is the variable that is measured and this is the amount of product formed by the enzyme.
- However, there is another variable that must be kept constant for all groups in an experiment. This variable is called constant variable.
- The constant variable must remain the same for all groups of the experiment in order not to affect the outcome of the tested variable.
- In this experiment, the constant variable that must remain the same for all trials of the experiment is the initial concentration of the substrate.
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