Round 8: Tossup 12

A constituent of these biological structures called DSPC is used in the formulation of several mRNA vaccines. These structures’ flippases and scramblases (10[3])facilitate transverse (10[2])movement (10[1])between (10[1])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 (10[1])is controlled by their cholesterol content. Proteins in these structures (10[1])may be classified as “peripheral” or “integral.” The fluid mosaic model of these structures describes how channel (10[1])proteins are embedded in their phospholipid bilayers. For 10 points, name these structures that separate the interior and exterior of cells. ■END■

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