%%

Gaokao Biology Practice Question

下列关于生物体中酶的叙述,正确的是

  1. A.在细胞中, 核外没有参与 DNA 合成的酶
  2. B.由活细胞产生的酶在生物体外没有催化活性
  3. C.从胃蛋白酶的提取液中沉淀该酶可用盐析的方法
  4. D.唾液淀粉酶催化反应最适温度和保存温度是 $37^{\circ} \mathrm{C}$

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