How Peroxisomes formed
Peroxisomes are formed within the cell from the smooth endoplasmic reticulum by a process of budding. Peroxisomes found in the kidney and liver cells are important in the oxidation of various toxic chemicals that are ingested by the organism. Thus, within the cell, all reactions leading to formation of toxic hydrogen peroxide are confined to peroxisomes so that it is instantly decomposed within these organelles.