题型：单选题 题类：常考题 难易度：普通
2015-2016学年陕西省延安市黄陵中学高一上学期月考生物试卷
试管号 | 试管内容物 | 条件 | 检验 |
1 | 2mL浆糊+2mL纯唾液 | 37℃10min | 3滴碘液 |
2 | 2mL浆糊+2mL清水 | 37℃10min | 3滴碘液 |
3 | 2mL浆糊+2mL稀释10倍唾液 | 37℃10min | 3滴碘液 |
4 | 2mL浆糊+2mL纯唾液 | 0℃10min | 3滴碘液 |
5 | 2mL浆糊+2mL纯唾液+2滴浓HCl | 37℃10min | 3滴碘液 |
试管 | 1 | 2 | 3 | 4 |
1%淀粉溶液 | 3mL | — | 3mL | — |
2%蔗糖溶液 | — | 3mL | — | 3mL |
新鲜唾液 | 1mL | 1mL | — | — |
蔗糖酶溶液 | — | — | 1mL | 1mL |
本尼迪特试剂 | 2mL | 2mL | 2mL | 2mL |
实验结果 |
试题篮
