Question

A lab is performed to study the effect of pH and heat on the function of the catalase enzyme found in carrot plants. What would be considered the independent variable(s) in this lab. Select all that apply. pH temperature enzyme activity water

Answer 1

Both pH and Heat effect catalase function therefore we will measure the function based upon changing these variables.  

Answer 2

Answer: pH and temperature

Explanation:

In an experimental setup, an independent variable is the one which can be manipulated in an experiment the affect of such change can be observed on the dependent variable. The dependent variable is the outcome of the experimental procedure.

According to the given situation, the effect of enzyme over the carrot plants is the dependent variable and this effect can be observed due to pH and heat which can be changed or manipulated in an experiment to observe the desire effect of enzyme over the carrot plants. Hence, these two variables are independent variables.