Answer:
The correct answer is "Catalase".
Explanation:
Catalase is an enzyme that is found in practically all living beings for their important function of catalyzing the reaction of decomposition of hydrogen peroxide to water and oxygen. Catalase is primarily found in organelles involved in respiration and photorespiration, such as mitochondrias and peroxisomes. If catalases are found in rough ER microsomes it would indicate that rough ER has been contaminated with another organelle, such as mitochondrias and peroxisomes.
