What is the answer for 25

When a catalyst is present in a biochemical reaction, what is not expected is that the reaction requires more energy than normal (option b).

Explanation:

A catalyst is a substance used to facilitate a chemical reaction, decreasing the reaction time. Unlike a reagent, the catalyst retains the same amount of mass at the end of the reaction.

In a biochemical reaction, the use of a catalyst not only accelerates the reaction, but also decreases the amount of energy required by the process. An example of a biological catalyst is enzymes, specialized proteins that facilitate metabolic reactions.

The other options can be expected with the use of a catalyst, due to:

    a. One of the functions of the catalyst is to decrease the amount of energy needed in a reaction.

    c. Catalysts are substrate specific.

    d. Catalysts work in a specific pH range.