%%

Gaokao Biology Practice Question

2.选择合适的试剂有助于达到实验目的。下列关于生物学实验所用试剂的叙述,错误的是 ()

  1. A.鉴别细胞的死活时,台盼蓝能将代谢旺盛的动物细胞染成蓝色
  2. B.观察根尖细胞有丝分裂中期的染色体,可用龙胆紫溶液使其着色
  3. C.观察RNA在细胞中分布的实验中,盐酸处理可改变细胞膜的通透性
  4. D.观察植物细胞吸水和失水时,可用蔗糖溶液处理紫色洋葱鳞片叶外表皮

Want to know if you got it right?

Answer this and thousands more real Gaokao previous-year questions free, get graded instantly, and climb the global ranked leaderboard.

Practice Gaokao free →

More Gaokao Biology questions