英语翻译唾液与淀粉的关系唾液能帮助消化淀粉将馒头屑等量放入两支试管.在1号试管里注入2ml唾液淀粉酶,2号试管里注入2m

问题描述:

英语翻译
唾液与淀粉的关系
唾液能帮助消化淀粉
将馒头屑等量放入两支试管.在1号试管里注入2ml唾液淀粉酶,2号试管里注入2ml清水.将两支试管充分搅拌,并放入37度温水中浸泡5-10分钟.取出试管,各滴入两滴碘液,摇匀.
1号不变蓝,2号变蓝.
1个回答 分类:英语 2014-12-02

问题解答:

我来补答
Relationship between saliva and starch
Saliva helps digest starch
Put some steamed bread crumbs into two test tubes--labelled as Tube No.1 and Tube No.2.Add 2ml of salivary amylase into Tube No.1.Pour 2ml of plain water into Tube No.2.Stir both tubes thoroughly and then soak them in warm water [37 °] for 5-10 minutes.Take out the tubes and add two drops of iodine (solution) into both of them.Shake them thoroughly.
Results:Tube No.1 colour unchanged.Tube No.2 changed into blue.
一些相关的信息:
"Saliva contains the enzyme salivary amylase唾液淀粉酶.The enzymes (amylase),will begin to break down the long chain of glucose molecules (starch) into simple sugars such as maltose and glucose .It is the beginning of the process of trying to get the big sugar chains into di and monosaccharides,so that they can be digested accross the gut lining."
 
 
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