<prompt> Which of the following is a free radical scavenging enzyme?MyeloperoxidaseGlutathione peroxidaseNADPH oxidaseProtease  <response>: Elimination of free radical occur multiple mechanism:- 1.Antioxidant: Glutathione and vitamin A, C, E 2.Enzymes:- i Superoxide dismutasemitochondria O2-H2O ii Glutathione peroxidase mitochondria iii Catalase Peroxisome: H2O2-O2 and H2O glutathione independent. 3. Metal Carrier protein TransferrinCeruloplasmin. Destruction of phagocytose material:- Oxygen dependent killing is most effective mechanism. 