Which of the following is not an example of an enzyme used to detoxify reactive oxygen species? A. catalase (B) permeases (C) peroxidases (D) superoxide dismutases

To determine which option is not an example of an enzyme used to detoxify reactive oxygen species (ROS), let's briefly review each option: A. **Catalase** - This enzyme catalyzes the decomposition of hydrogen peroxide (a reactive oxygen species) into water and oxygen, thus detoxifying it. B. **Permeases** - These are not enzymes that detoxify ROS. Instead, permeases are proteins that facilitate the transport of molecules across cell membranes. C. **Peroxidases** - These enzymes help in the reduction of peroxides, including hydrogen peroxide, thus playing a role in detoxifying ROS. D. **Superoxide dismutases** - These enzymes catalyze the dismutation of superoxide radicals into oxygen and hydrogen peroxide, thereby detoxifying superoxide, a type of reactive oxygen species. Based on this analysis, the correct answer is: **B. permeases** - This is not an enzyme used to detoxify reactive oxygen species.