The correct answer is enzymes.
Enzymes are special types of proteins that are capable of catalyzing chemical reaction in the body. Without enzymes the cell metabolism would be so slow that it would be almost impossible for an organism to function- Enzymes speed up chemical processes by binding the reactants to specific places on the protein called active spots which brings the reactants closer and causes a conformational change in the reactants, resulting in a fast catalyzed reaction.
