[puh-rok-suh-sohm] /pəˈrɒk səˌsoʊm/

noun, Cell Biology.
a cell organelle containing catalase, peroxidase, and other oxidative enzymes and performing essential metabolic functions, as the decomposition of fatty acids and hydrogen peroxide.
a type of organelle present in most eukaryotic cells that carry out oxidative reactions, such as oxidation of alcohol in the liver

peroxisome per·ox·i·some (pə-rŏk’sĭ-sōm’)
A cell organelle containing enzymes, such as catalase and oxidase, that catalyze the production and breakdown of hydrogen peroxide. Also called microbody.
A cell organelle containing enzymes that catalyze the production and breakdown of hydrogen peroxide.


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  • Peroxyborate

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  • Peroxydisulfuric-acid

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