Packet 3: Bonus 14
The two-state transition model explains how these molecules conform to helix and coil states. For 10 points each:
[10e] Name these long molecules that include nucleic acids. Nylon is a synthetic type of these molecules.
ANSWER: polymers
[10m] The two-state model assumes each monomer displays a “maximum” form of this phenomenon, causing the entire polymer to be coiled or helical. The Hill equation calculates the degree of this phenomenon during binding.
ANSWER: cooperativity [or being cooperative or cooperation; accept maximum cooperativity; accept cooperative binding]
[10h] In a helix–coil transition model named for J. K. Bragg and this scientist, the cooperativity of each monomer and its neighbor is assigned a specific statistical weight. A polymer’s molecular mass can be determined using a plot named for this scientist constructed from SLS data.
ANSWER: Bruno Zimm [or Bruno Hasbrouck Zimm; accept Zimm–Bragg model or Zimm-Bragg notation; accept Zimm plot]
<KN, Chemistry> | NAFTA-Packet-3
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 43 | 14.42 | 100% | 30% | 14% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| The Unbearable Heaviness of History Players | Abbas I founded the Abbasids | 10 | 0 | 0 | 10 | E |
| UBC B | UBC A | 10 | 0 | 0 | 10 | E |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| 2026 NAFTA at Stanford | 01/17/2026 | ✓ | 4 | 20.00 | 100% | 75% | 25% |
| 2026 NAFTA at UBC | 01/17/2026 | ✓ | 2 | 10.00 | 100% | 0% | 0% |
| 2025 NAFTA Online | 02/14/2026 | ✓ | 4 | 15.00 | 100% | 25% | 25% |
| 2026 NAFTA at Vanderbilt | 02/14/2026 | ✓ | 3 | 16.67 | 100% | 67% | 0% |
| 2025 NAFTA at Toronto | 09/13/2025 | ✓ | 5 | 10.00 | 100% | 0% | 0% |
| 2025 NAFTA at Maryland | 09/27/2025 | ✓ | 5 | 12.00 | 100% | 20% | 0% |
| 2025 NAFTA at Harvard | 10/04/2025 | ✓ | 3 | 26.67 | 100% | 100% | 67% |
| 2025 NAFTA at Oxford | 10/11/2025 | ✓ | 4 | 10.00 | 100% | 0% | 0% |
| 2025 NAFTA at Chicago | 11/08/2025 | ✓ | 6 | 11.67 | 100% | 17% | 0% |
| 2025 NAFTA at Columbia | 11/08/2025 | ✓ | 5 | 18.00 | 100% | 40% | 40% |
| 2025 NAFTA at Richmond | 12/20/2025 | ✓ | 2 | 10.00 | 100% | 0% | 0% |