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小麦种子萌发时产生淀粉酶等酶,将淀粉水解为麦芽糖、葡萄糖等。小麦种子萌发的最适温度为30℃左右。按下图将小麦种子分别置于20℃和30℃培养箱中培养4天,依次取等量的萌发种子分别制成提取液Ⅰ和提取液Ⅱ。取3支试管甲、乙、丙,分别加入等量的淀粉液,然后加入等量的提取液和蒸馏水,45℃水浴保温5分钟,立即在3支试管中加入等量的斐林试剂并用55℃水浴加热2分钟,摇匀后观察试管中的颜色。结果是 [ ]
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