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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 (10[1])of these structures at varying temperatures is controlled by their cholesterol content. Proteins in these structures may be classified as “peripheral” (10[1])or “integral.” The fluid (10[1])mosaic model of these (10[1])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■ (10[1])

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

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Buzzes

PlayerTeamOpponentPositionValue
Amelia ReesDurham ADurham B4210
Laura BullockSheffield ADurham D6310
James BramleyDurham CEdinburgh A6710
Nitinkisor Rajesh KumarEdinburgh BYork7110
Elliot EarleySheffield BEdinburgh C9710

Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK5100%0%68.00
UK (South)UK8100%0%59.13
Northern CaliforniaUS4100%0%37.00
Southern CaliforniaUS7100%0%44.29
Eastern Canada (1)US5100%20%64.60
Eastern Canada (2)US9100%0%49.33
FloridaUS4100%25%82.25
Great LakesUS11100%0%34.64
Lower Mid-AtlanticUS9100%33%60.33
Upper Mid-AtlanticUS12100%17%52.92
MidwestUS9100%0%53.56
NorthUS4100%0%52.50
NortheastUS12100%8%59.25
PacificUS8100%0%53.75
South CentralUS7100%14%62.14
SoutheastUS1392%8%53.75
Upstate NYUS5100%0%57.60