Round 6: Tossup 12

A constituent of these biological structures called DSPC is used in the formulation of several mRNA vaccines. These structures’ flippases and (10[1])scramblases (10[1])facilitate transverse (10[1])movement between their leaflets. An early sign of apoptosis is the formation of blebs in these structures. The rigidity of these structures at varying (10[1])temperatures is controlled (10[1])by their cholesterol (10[1])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■ (10[1]0[1])

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