细胞壁 植物细胞的细胞膜之外还有细胞壁它是无生�的结构其组成成分是纤维素和果胶都是细胞分泌的产物细胞壁的功能是支持和保护同时还能防止 Template




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tomski细胞壁 植物细胞的细胞膜之外还有细胞壁它是无生�的结构其组成成分是纤维素和果胶都是细胞分泌的产物细胞壁的功能是支持和保护同时还能防止 coloring