Peroxisomes (microbodies and related particles).

Free Radicals: Properties, Sources, Targets, and Their Implication in Various Diseases

“…In peroxisomes the respiratory pathway involves the transfer of electrons from various metabolites to the oxygen leads to H 2 O 2 formation [66], but is not coupled to oxidative phosphorylation to produce ATP instead free energy is released in the form of heat. The other free radicals produced in peroxisomes include H 2 O 2 , O 2…”

Fine Structural Changes in the Hepatic Microbodies of Rats Treated With Hypolipidemic Agents, Gemfibrozil and Clofibrate

“…Microbodies or peroxisomes have recently been characterized as distinct cytoplasmic organelle limited by a single membrane, containing catalase and several oxidative enzymes (3,13,26,27). Microbodies are very widely distributed in many animals and plants (10,32), but their physiological significance has not yet been clearly defined.…”

Peroxisomal respiration and energy conservation

“…Indeed, de Duve [ 1,18,19] has claimed that the respiratory chain of peroxisomes (0, -+ Hz02 + I&O, catalyzed by HaO,-producing oxidases and catalase) is of a very primitive nature, since it carries no provision for the conservation of energy and catalyzes an essentially wasteful form of respiration. Thus it can be (and has been) argued that the first oxidative step in the peroxisomal P-oxidation system, that is catalyzed by the fatty acyl-CoA oxidase, as well as all the other oxidations catalyzed by peroxisomal HzOz-producing oxidases, is totally wasteful insofar as energy conservation is concerned [203.…”