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230问答网 > 为什么折断莲藕后有丝连着？

为什么折断莲藕后有丝连着？

莲藕中的丝到底是什么？为什么总是会「藕断丝连」？

2025-03-15 07:47:55

推荐回答（1个）

回答1：

我们看到的细丝其实是是藕的输送组织，用来输送养分。这些细管是呈螺旋状排列，称为环状管壁。其结构形状跟弹簧一样，当莲藕被折断时，它那许多呈螺旋状的管子并没有断，而是像弹簧那样被拉长了，变成了许多的丝状物质，在折断莲藕时，这些细管子就会被拉长成丝状。

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