AP BIOLOGY

Detailed explanation-1: -Because hydrogen peroxide is harmful to the cell, peroxisomes also contain the enzyme catalase, which decomposes hydrogen peroxide either by converting it to water or by using it to oxidize another organic compound.

Detailed explanation-2: -Fortunately peroxisomes produce copious amounts of the enzyme catalase and this helps break down hydrogen peroxide to water and oxygen. Peroxisomes are major users of oxygen and the oxygen produced from hydrogen peroxide is used within the organelle.

Detailed explanation-3: -A major function of the oxidative reactions performed in peroxisomes is the breakdown of fatty acid molecules. In a process called oxidation, the alkyl chains of fatty acids are shortened sequentially by blocks of two carbon atoms at a time, thereby converting the fatty acids to acetyl CoA.

Detailed explanation-4: -Peroxisomes are ubiquitous organelles involved in a wide spectrum of biochemical processes such as the -oxidation of fatty acids and the metabolism of hydrogen peroxide [1, 2].