题型:单选题 题类: 难易度:普通
生物学高考一轮复习学案:第7讲 酶和ATP
组别 | pH | CaCl2 | 温度/℃ | 降解率/% |
① | 9 | + | 90 | 38 |
② | 9 | + | 70 | 88 |
③ | 9 | - | 70 | 0 |
④ | 7 | + | 70 | 58 |
⑤ | 5 | + | 40 | 30 |
注:+/-分别表示有/无添加,反应物为Ⅰ型胶原蛋白。
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