Similarities and differences of peroxisomes and lysosomes
What are the morphological, functional and chemical similarities and differences among peroxisomes and lysosomes?
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Similarities: Lysosomes and peroxisomes are small membranous vesicles which include enzymes and enclose residual substances from external or internal origin degrading them.
Differences: Lysosomes contain digestive enzymes (or hydrolases) which break substances to be digested into small molecules; peroxisomes include enzymes which degrade mostly long-chained fatty acids and amino acids and which inactivate toxic agents comprising ethanol; in peroxisomes there is the enzyme catalase, accountable for the oxidation of organic compounds through hydrogen peroxide (H2O2) and, whenever such substance is in excess, by the degradation of peroxide into water and molecular oxygen.
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