Question

Which of the following best describes the events that take place when an enzyme catalyzes a chemical reaction?

The enzyme gives the products of the reaction different chemical and physical properties.
The enzyme produces copies of itself, increasing the rate of the chemical reaction.

The enzyme changes in structure as different parts of it are used up in the reaction.
The enzyme lowers the activation energy of the reaction, allowing it to proceed more quickly.

Answer 1

The enzyme lowers the activation energy of the reaction, allowing it to proceed more quickly

Answer 2

Option (4).

Step-by-step explanation:

Enzymes are bio catalyst that can increase the rate of chemical reaction without itself going any change in the reaction. Activation energy is the minimum amount of energy required to convert the reactant into the product.

Enzymes lower the activation energy of a reaction by binding with the one of the substrate (reactant) of the reaction. The enzymes increases the effective collision of the reaction and increases the rate of a reaction.

Thus, the correct answer is option (4).