<prompt> All of the following enzymes may contribute in generating free oxygen radicals within neutrophils for killing intracellular bacteria, except-Superoxide dismutaseFentons reactionNADPH oxidaseGlutathione peroxidase  <response>: NADPH oxidase called the phagocyte oxidase, which oxidizes NADPH reduced nicotinamide adenine dinucleotide phosphate and, in the process, conves oxygen to superoxide ion O2 Superoxide is then conveed by superoxide dismutase into hydrogen peroxide O2 2H - H2O2 glutathione peroxidase major function is to protect cells from oxidative damage by regeneration of glutathione. Fenton reaction: H2O2 Fe2 -Fe2 OH- OH. ref robbins basic pathology 9th ed page 38 