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细胞骨架的主要成分是什么?
细胞骨架是真核细胞中的蛋白纤维网架体系,主要由微管、微丝、中间纤维、肌动蛋白丝和肌球蛋白丝等成分构成。 1.微管:微管是由微管蛋白组成的中空管状结构,具有维持细胞形态、参与细胞内物质运输和细胞分裂等重要功能。 2.微丝:微丝主要由肌动蛋白组成,在细胞运动、细胞形态变化和细胞分裂等过程中发挥关键作用。
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