Answer : The correct option is, Activators.
Explanation :
Inhibitors : It is defined as the substance which decreases the rate of the chemical reaction and it can reduce the effectiveness of the catalyst in a catalyzed reaction.
Activators : It is defined as the substance that combine or bind to the enzymes and increases their activities. That means activators are the chemical mechanisms that start a reaction. The role of activators are opposite to the inhibitors.
Centrioles : It is present in the eukaryotic cells. It is a small, cylindrical cell organelle that near the nucleus in the cytoplasm. The main function of this cell organelle is to help in the cell division in the animal cells.
Vacuoles : It is found in both plant and animal cell. It is the largest organelle in the plant cell as compared to the animal cell. The main function to hold the waste material.
Hence, the correct option is, Activators.
