Which groups of bacteria produce catalase & SOD? Why is it necessary to do so?
Which groups of bacteria produce catalase & SOD? Why is it necessary to do so?
Homework Answers
SOD (superoxide dismutase) and Catalases are enzymes produced by Aerobic bacteria (and other multicellular aerobes in general). Anaerobes produce very little or no amount of SOD and catalase.
Function of SOD: Converts superoxides (O2-) into oxygen (O2) and Hyprogen peroxide (H2O2) through a redox reaction.
Function of Catalase: Converts Hyprogen peroxide into water and oxygen.
An aerobic organism produces free radicals through out its life due to the reduction of Oxygen molecules during respiration. SOD and Catalase are necessary for an aerobic bacteria to combat the effects of free radicals and Reactive Oxygen Species (ROS) like superoxides and Hydrogen peroxides (which is the by product formed from the action of SOD on superoxides).
If it weren't for these two enzymes, survival of aerobes will be difficult since the free radicals and ROS (in this case, O2- and H2O2) will cause damage to cells, proteins and DNA of the organism and eventually its death.
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Which groups of bacteria produce catalase & SOD? Why is it
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