Peroxisome
The Peroxisome is a small organelle that is present in the cytoplasm of cells.It contains the reducing enzyme catalyst and oxidases. The major function of the peroxisome is the breakdown of fatty acid molecules, in a process call beta-oxidation.In this process, the fatty acids are broken down into two carbons at a time, coverted to acetyl-CoA, which is then transported back to the cytosol for further use. In animal cells beta oxidation can also occur in the mitochondria. In yeast and plant cells, this process is exclusive for the peroxisome.
In addition to providing a compartment for oxidation reactions, peroxisomes are involved in lipid biosynthesis, In animal cells, cholesterol and dolichol are synthesized in peroxisomes as well as in the ER. In the liver, peroxisomes are also involved in the synthesis of bile acids, which are derived from cholesterol. In addition, peroxisomes contain enzymes required for the synthesis of plasmalogens. The Peroxisome play an important role in the production of bile acids that are important for the absorption of fats and fat-soluble vitamins, such as vitamins A and K