The enzyme(s) that deal with toxic oxygen-containing molecules is/are

• A. Glycolase.
• B. Catalase.
• C. Superoxide dismutase.
• D. Cytochrome oxidase.
• E. B & C.
• F. B & D.

Answer: (E)

Verified step by step guidance

1. Understand the role of enzymes in dealing with toxic oxygen-containing molecules. These enzymes help protect cells from oxidative damage.
2. Identify the enzymes listed in the problem: Glycolase, Catalase, Superoxide dismutase, and Cytochrome oxidase.
3. Recognize that Catalase and Superoxide dismutase are enzymes specifically involved in detoxifying reactive oxygen species (ROS). Catalase breaks down hydrogen peroxide into water and oxygen, while Superoxide dismutase converts superoxide radicals into less harmful molecules.
4. Consider the function of Cytochrome oxidase, which is involved in the electron transport chain and not directly in detoxifying ROS.
5. Conclude that the correct enzymes dealing with toxic oxygen-containing molecules are Catalase and Superoxide dismutase, corresponding to option B & C.