A peroxisome is a small, membrane-bound organelle found in the cells of many eukaryotic organisms. It plays a crucial role in various metabolic processes, including the breakdown of fatty acids and the detoxification of harmful substances. Peroxisomes contain enzymes that produce and degrade hydrogen peroxide, a byproduct of these reactions, helping to maintain cellular health. These organelles are particularly important in the liver and kidney cells, where they help process toxins and fatty acids. Disorders related to peroxisomes, such as Zellweger syndrome, can lead to serious health issues due to the accumulation of toxic substances in the body.