It is student A .
It contains the study of plants and soil
This is true. There are a few websites online that talk about how it happens, I suggest looking them up.
Answer:
Enzyme catalase is affected by high temperatures
Explanation:
Enzymes are organic catalysts which are protein in nature therefore they are sensitive to changes in temperature. Most enzymes have an optimum range of temperature between 35-40°c.
As temperature is increased, the optimum temperature is reached where the rate of reaction is maximum. When beef liver is boiled, hydrogen peroxide is not broken down because higher temperatures denature enzymes making them non effective.