Round 7: Tossup 1

The glutathione-ascorbate cycle rids the body of this molecule and its derivatives. (15[1])This molecule is released in the conversion of glycolate to glyoxylate, the latter of which names an analog of the TCA in the plant version of a certain organelle. (-5[1])The metalloenzyme superoxide dismutase releases (15[1])oxygen and this molecule as a byproduct. (-5[1])Derivatives of this molecule name a structure that performs very (*) long-chain fatty acid oxidation. (10[1])Homolytic cleavage of this molecule produces (-5[1])a pair of highly damaging hydroxyl radicals. This ROS is decomposed into water and oxygen gas by the enzyme catalase. For 10 points, name this molecule with (10[1])formula H2O2. ■END■ (10[2])

ANSWER: hydrogen peroxide [accept H2O2 before read; prompt on peroxisome; anti-prompt on peroxides by asking “what is the simplest molecule of that type?”]
<Science - Biology, Rohan Ganeshan> | VAULT II Packet 07
= Average correct buzzpoint

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