Previous tossup - Next tossup

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 (-5[1])ROS is decomposed into water and oxygen gas by the enzyme (10[2])catalase. For 10 points, name this molecule with formula H2O2. ■END■ (10[3])

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

Back to tossups

Buzzes

PlayerTeamOpponentBuzzpointValue
Swastik RoyTexas AWashington80-5
Aditya Rao (Challenger-Strawberry Park)CaliforniaGeorgia C9110
Kamran Nawaz (St. Mark's)Texas BGeorgia B9110
Arjun NairNew YorkGeorgia A10210
Om DessaiNorth CarolinaKentucky10210
Krit KulkarniWashingtonTexas A10210

Summary

TournamentEditionMatchHeardConv. %Power %Neg %Avg. Buzz
VAULT II at Georgia Tech2026-01-24✓6100%33%50%70.83
Triangle Cup2026-03-13✓3100%0%33%94.00
VAULT II at Eden Prairie HS2026-03-13✓3100%33%0%79.33
VAULT II at McGill2026-03-13✓4100%0%0%86.75
VAULT II at UCSB2026-03-13✓5100%40%40%77.60
VAULT II Northern UK2026-04-24✕3100%0%33%105.00
VAULT II Southern UK2026-04-24✕475%25%25%72.67
VAULT II at Harvard2026-04-30✓3100%33%0%68.00
VAULT II at MINT2026-06-19✓5100%0%20%97.60
VAULT II Stanford Online2026-07-17✓8100%50%13%57.50