Peroxisome

2022-02-09 links: reference:

Peroxisome #

Membrane-bound organelle. Contains oxidases $\ce{RH2 + O2->R + H2O2}$ with $R$ as an organic substrate. Also contains Catalase to sort of revert this by oxidizing other substrates, like Ethanol and Acetaldehyde (Ethanal).

• Breaks down very-long-chain fatty acids through Beta-oxidation.
  • Produces some leftover energy as heat. It’s not an absolute cutoff according to ChatGPT, but any VLCFA over 18 (generally) needs to be oxidized in peroxisomes, rather than mitochondria, and is broken down into C8+C10. https://fireinabottle.net/very-long-chain-saturated-and-monounsaturated-fats/#comment-2045