The basic structure of biological membranes is determined by the lipid bilayer, but their specific functions are carried out largely by proteins. Explain your answer.

【参考答案】

脂双层决定了膜结构, 并提供了渗透性的障碍, 使得细胞内外两侧隔离。特异的膜蛋白允许特异的溶质进出膜、结合信号分子、介导......

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