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兴奋剂是国际体育界对所有违禁药物的总称，包含种类很多，常用兴奋剂有雄激素及其衍生物、促红细胞生成素（EPO）等。EPO作为一种糖蛋白激素，能够刺激骨髓造血功能，机理如图1所示，图2是人体细胞模式图。请回答下列相关问题： 与促红细胞生成素（EPO）合成和分泌有关具有膜结构的细胞器有（）（用图2中的数字表示），EPO的受体是一种膜蛋白，负责合成EPO受体的细胞器是（）（用图2中的数字表示）。
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