peroxisome

(noun)

a eukaryotic organelle that is the source of the enzymes that catalyze the production and breakdown of hydrogen peroxide and are responsible for the oxidation of long-chain fatty acids

Related Terms

  • endosymbiont
  • cyanobacteria

Examples of peroxisome in the following topics:

  • Lysosomes and Peroxisomes

  • Peroxisomes

    • Peroxisomes neutralize harmful toxins and carry out lipid metabolism and oxidation reactions that break down fatty acids and amino acids.
    • Peroxisomes perform important functions, including lipid metabolism and chemical detoxification.
    • In this way, peroxisomes neutralize poisons, such as alcohol, that enter the body.
    • In order to appreciate the importance of peroxisomes, it is necessary to understand the concept of reactive oxygen species.
    • Peroxisomes oversee reactions that neutralize free radicals.
  • Characteristics of Eukaryotic Cells

    • Peroxisomes are small, round organelles enclosed by single membranes; they carry out oxidation reactions that break down fatty acids and amino acids.
    • Peroxisomes also detoxify many poisons that may enter the body.
  • Phylogeny of the Eukarya

    • The last common ancestor of all eukaryotes is believed to have been a phagotrophic protist with a nucleus, at least one centriole and cilium, facultatively aerobic mitochondria, sex (meiosis), a dormant cyst with a cell wall of chitin, cellulose, and peroxisomes.
  • Endosymbiosis and the Evolution of Eukaryotes

    • The possibility that the peroxisome organelles may have an endosymbiotic origin has also been considered, although they lack DNA.
  • Comparing Plant and Animal Cells

    • Each eukaryotic cell has a plasma membrane, cytoplasm, a nucleus, ribosomes, mitochondria, peroxisomes, and in some, vacuoles; however, there are some striking differences between animal and plant cells.
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