An example of a preventive antioxidant is:
Correct Answer: Catalase
Description: Antioxidants fall into two classes:
Preventive antioxidants, which reduce the rate of chain initiation. ex: Catalase and other peroxidases such as glutathione peroxidase.
Chain-breaking antioxidants, which interfere with chain propagation. ex: Superoxide Dismutase, Uric Acid, Vitamin E (Most powerful).
Key Concept:
Catalase falls into preventive anti-oxidants which reduce the rate of chain initiation.
Ref : Harper’s illustrated biochemistry, 31st edition.
Category:
Biochemistry
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