Question

question 17 of 25
how does an enzyme catalyze a chemical reaction?
a. it makes a copy of the sequence of nitrogen bases in the substrate.
b. it reduces the amount of energy needed for the reaction to begin.
c. it forms a layer of insulation that protects the substrate from the cold.
d. it reacts with the substrate to form the product.

Explanation:

Enzymes are biological catalysts that lower the activation - energy of a chemical reaction, facilitating the reaction to occur more readily.

Answer:

B. It reduces the amount of energy needed for the reaction to begin.