题型:单选题 题类:常考题 难易度:普通
辽宁省六校协作体2016-2017学年高一下学期生物开学考试试卷
管号 | 1%焦性没食子酸/mL | 2%H2O2/mL | 缓冲液/mL | 过氧化物酶溶液/mL | 白菜梗提取液/mL | 煮沸冷却后的白菜梗提取液/mL |
1 | 2 | 2 | 2 | ﹣ | ﹣ | ﹣ |
2 | 2 | 2 | ﹣ | 2 | ﹣ | ﹣ |
3 | 2 | 2 | ﹣ | ﹣ | 2 | ﹣ |
4 | 2 | 2 | ﹣ | ﹣ | ﹣ | 2 |
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 |
试题篮