Round 4: Tossup 11

Plants possess a variant of this organelle called the glyoxysome (“GLY-ock-see-zohm”) in which acetyl-CoA (“uh-SEE-til koh-AY”) is converted into succinate (-5[1])(“SUHK-suh-nate”) to allow carbohydrate synthesis prior to germination. This organelle is where very-long-chain fatty acids are oxidized, a process that is dysfunctional in disorders such as adreno•leuko•dystrophy and (*) Zellweger (10[1])syndrome. Firefly luciferase is localized to this organelle, which contains the catalytically-perfect enzyme catalase. Reactive oxygen species are digested by this organelle and converted to its namesake molecule. For 10 points, name this organelle that produces and breaks down H2O2. ■END■ (10[1]0[5])

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