Question

Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction? (2 points) Its mass decreases since part of the molecule is used up. It is unchanged and can be used again for the same chemical reaction. It becomes chemically bonded to the products of the reaction. Its shape changes, giving it different chemical and physical properties.

Answer 1

It is unchanged and can be used again for the same chemical reaction.

Answer 2

It is unchanged and can be used again for the same chemical reaction. The whole point of a catalyst is that it can be used and reused. Think of it like a machine in a factory that does the work to build something. We don't throw the machine away. It does its job and moves on to do it again.