Round 7: Tossup 12
A constituent of these biological structures called DSPC is used in the formulation of several mRNA vaccines. These structures’ flippases and scramblases facilitate transverse movement between their leaflets. An early sign of apoptosis is the formation of blebs in these structures. The rigidity of these structures at varying temperatures is controlled by their cholesterol content. Proteins in these structures may be classified as “peripheral” or “integral.” The fluid mosaic model of these structures describes how channel proteins are embedded in their phospholipid bilayers. For 10 points, name these structures that separate the interior and exterior of cells. ■END■
ANSWER: cell membranes [or plasma membranes or cytoplasmic membranes or cellular membranes; accept plasmalemma; accept integral membrane proteins or peripheral membrane proteins; prompt on lipid bilayers or lipid rafts or lipid nanoparticles; reject “cell walls” or “cytoplasm”; reject “nuclear membranes”]
<Editors, Biology> | Packet H
= Average correct buzz position
Buzzes
Summary
| Tournament | Edition | TUH | Conv. % | Neg % | Average Buzz |
|---|---|---|---|---|---|
| UK (North) | UK | 5 | 100% | 0% | 68.00 |
| UK (South) | UK | 8 | 100% | 0% | 59.13 |
| Northern California | US | 4 | 100% | 0% | 37.00 |
| Southern California | US | 7 | 100% | 0% | 44.29 |
| Eastern Canada (1) | US | 5 | 100% | 20% | 64.60 |
| Eastern Canada (2) | US | 9 | 100% | 0% | 49.33 |
| Florida | US | 4 | 100% | 25% | 82.25 |
| Great Lakes | US | 11 | 100% | 0% | 34.64 |
| Lower Mid-Atlantic | US | 9 | 100% | 33% | 60.33 |
| Upper Mid-Atlantic | US | 12 | 100% | 17% | 52.92 |
| Midwest | US | 9 | 100% | 0% | 53.56 |
| North | US | 4 | 100% | 0% | 52.50 |
| Northeast | US | 12 | 100% | 8% | 59.25 |
| Pacific | US | 8 | 100% | 0% | 53.75 |
| South Central | US | 7 | 100% | 14% | 62.14 |
| Southeast | US | 13 | 92% | 8% | 53.75 |
| Upstate NY | US | 5 | 100% | 0% | 57.60 |