You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are free radical scavengers except and explain in detail?
Cells have developed many mechanisms to remove free radicals and thereby minimize injury Antioxidant enzymes include glutathione peroxidase, SOD and catalase. Hydrogen peroxide is one of the free radical involved in causing injury Reference: Robbins and Cotran Pathologic Basis of Disease, page 48, 9th edition; Chapter 2