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#organelle facts

1 public question tagged with this topic.

Which of the following statements is false regarding peroxisomes?

Peroxisomes are single-membrane organelles morphologically and functionally distinct from lysosomes despite both participating in degradative metabolism. Transmission electron microscopy shows spherical vesicles 0.1 to 1 micrometer with electron-dense crystalline cores composed of urate oxidase in rat or dense catalase aggregates in humans. Unlike double-membrane mitochondria and nucleus, peroxisomes are bounded by single phospholipid bilayer enriched in peroxisomal membrane proteins PMP70, ALDP, PEX11 isoforms and containing import translocon. Their matrix contains oxidative enzymes such as a

Ref: Smith & Aitchison, Cold Spring Harbor Perspect Biol 2013: Peroxisomes Originate from ER and Contain Oxidases.