Round 10: Tossup 15
Cholera toxin ADP ribosylates a protein’s G-s-alpha subunit, thereby preventing this reaction from occurring. The mechanism of most glycosidases occurs through this type of reaction. Performing this reaction on amides results in carboxylic acids. In muscle contraction, this type of reaction re-positions the myosin head, readying it to bind to (*) actin. Once a protein is tagged by ubiquitin, it is subjected to this type of reaction. This reaction, which releases ADP and an inorganic phosphate when it is done on ATP, is the opposite of dehydration synthesis. For 10 points, name this reaction that uses water to break down macromolecules. ■END■
ANSWER: hydrolysis
<Science - Chemistry, Rohan Ganeshan> | VAULT II Packet 10
= Average correct buzzpoint
Buzzes
| Player | Team | Opponent | Buzzpoint | Value |
|---|---|---|---|---|
| Daniel Sheffield | Belmont B | Belmont A | 80 | 10 |
| Simon Zhang | Lexington B | Mansfield B | 82 | 10 |
| Josephine Proskoczilo | Waltham A | Lexington A | 86 | 10 |
| Shreyas Kandela | Mansfield A | Waltham B | 89 | 10 |
Summary
| Tournament | Edition | Match | Heard | Conv. % | Power % | Neg % | Avg. Buzz |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 100% | 17% | 67% | 90.00 |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 67% | 0% | 67% | 89.00 |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 50% | 0% | 50% | 93.00 |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 100% | 40% | 40% | 65.80 |
| VAULT II Northern UK | 2026-04-24 | ✓ | 3 | 33% | 0% | 67% | 66.00 |
| VAULT II Southern UK | 2026-04-24 | ✓ | 4 | 100% | 50% | 25% | 71.00 |
| VAULT II at Harvard | 2026-04-30 | ✓ | 4 | 100% | 0% | 0% | 84.25 |
| VAULT II at MINT | 2026-06-19 | ✓ | 1 | 100% | 0% | 100% | 100.00 |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 88% | 0% | 63% | 93.29 |