Round 7: Tossup 1
The glutathione-ascorbate cycle rids the body of this molecule and its derivatives. 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. The metalloenzyme superoxide dismutase releases oxygen and this molecule as a byproduct. Derivatives of this molecule name a structure that performs very (*) long-chain fatty acid oxidation. Homolytic cleavage of this molecule produces 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 formula H2O2. ■END■
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
Buzzes
| Player | Team | Opponent | Buzzpoint | Value |
|---|---|---|---|---|
| Simon Zhang | Lexington B | Mansfield A | 46 | 15 |
| Jeffrey Wu | Belmont A | Waltham A | 66 | 10 |
| Ulises Shah | Belmont B | Mansfield B | 92 | 10 |
Summary
| Tournament | Edition | Match | Heard | Conv. % | Power % | Neg % | Avg. Buzz |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 100% | 33% | 50% | 70.83 |
| Triangle Cup | 2026-03-13 | ✓ | 3 | 100% | 0% | 33% | 94.00 |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 100% | 33% | 0% | 79.33 |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 100% | 0% | 0% | 86.75 |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 100% | 40% | 40% | 77.60 |
| VAULT II Northern UK | 2026-04-24 | ✕ | 3 | 100% | 0% | 33% | 105.00 |
| VAULT II Southern UK | 2026-04-24 | ✕ | 4 | 75% | 25% | 25% | 72.67 |
| VAULT II at Harvard | 2026-04-30 | ✓ | 3 | 100% | 33% | 0% | 68.00 |
| VAULT II at MINT | 2026-06-19 | ✓ | 5 | 100% | 0% | 20% | 97.60 |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 100% | 50% | 13% | 57.50 |