在外界环境条件恒定时，用如图装置测定种子萌发时的呼吸作用类型（假设呼吸底物全部为葡萄糖），实验开始同时关闭两装置活塞，在25℃下经过20min后观察红色液滴移动情况，下列对实验结果的分析错误的是_刷题宝

题干

在外界环境条件恒定时，用如图装置测定种子萌发时的呼吸作用类型（假设呼吸底物全部为葡萄糖），实验开始同时关闭两装置活塞，在25℃下经过20min后观察红色液滴移动情况，下列对实验结果的分析错误的是（　　）

A：若装置1的红色液滴左移，装置2的红色液滴不移动，则说明此时萌发的种子只进行有氧呼吸

B：若装置1的红色液滴左移，装置2的红色液滴右移，则说明此时萌发的种子既进行有氧呼吸又进行无氧呼吸

C：装置1的红色液滴向左移动的体积是呼吸作用消耗O₂的体积

D：装置2的红色液滴向右移动的体积是呼吸作用释放CO₂的体积

上一题下一题 0.0难度选择题更新时间:2017-12-18 08:13:32

答案(点此获取答案解析）

D

同类题1

请从下面作文题中任选一个，按提示及要求作文

（一）阅读下面的材料，自选角度，自拟题目，写一篇文章。

“我只是雏菊丛中的一朵小花。”一朵雏菊伤感地叹息，“与这么多雏菊生长在一起，我的美丽完全被淹没了，根本不会有人注意到我。”

“但是，你真的很美丽！”天使安慰它说。

“我想成为唯一的一朵，不想与它们呆在一块。”

“好吧！”天使把她带到了城市广场。

几天之后，一位园艺师来到城市广场：“把土壤翻一翻，种上天竺葵吧！”

“等一等！”雏菊大叫，“你那样做我会死的。”

“如果这里还有一些和你一样的雏菊花，会对广场起到非常好的美化作用。”园艺师说，“但是在你的周围找不到你的同类，你自己不可能形成一座花园。”说完，园艺师把雏菊从地上连根拔起。

（二）________温暖了我的岁月

要求：（1）问题补充完整。（2）内容具体，有真情实感。3、不少于700字

同类题2

在 K₂Cr₂O₇+HCl﹣﹣KCl+CrCl₃+Cl₂↑+H₂O反应中．

（1）氧化剂是　 ____　， ____元素被氧化，氧化产物是　 ____　．

（2）在参加反应的盐酸中，被氧化的HCl与未被氧化的HCl的质量比为　 ____　．

（3）如果反应生成0.1molCl₂，则转移电子的数目为 ____

同类题3

阅读下列短文, 根据短文内容选择最佳答案。

A

There are many different kinds of TV shows. Which do you like best?

	A bite of China is a documentary（纪录片）that started on CCTT on May 14th, 2012. It tells the stories behind delicious food from different places in China and shows a lot about Chinese culture.
	Britain's Got Talent (英国达人秀)is a British television talent show and competition which began in June 2007. Anyone of any age with some kinds of talent （才能）can apply for（申请）a chance against each other to win prize.
	The voice of China is a television singing competition. It started on July 13th , 2012 on Zhejiang TV. It is like The voice of Holland which started in Holland in 2010.
	Mythbusters （流言终结者）is a science entertainment（科技型娱乐）TV program. It is one of the oldest and the most popular shows on Discovery Channel. On the show, the hosts（主持人）, Adam Savage and Jamie Hynema, take a scientific look at what people say or think to see if it is true.

同类题4

Who says honesty (诚实) is dead? Last Tuesday morning Alan Reed, a student at Claremont College here, was getting1money out of the bank. He wanted to have 50 dollars and the teller (出纳)2him five twenties instead of five tens. For a few seconds, Alan wondered (疑惑)3to do it. Should he give the extra money back? Keep it?4 he kept it, he could buy several new CDs, or he could take his friend Simon to a big dinner. 5no one would ever notice (注意). But then he 6 the teller. She was a middle-aged woman with a sweet face, and she reminded(提醒) him of his mother. She had been nice to him. Then he thought that there were probably exact (精确的) 7kept of how much money was paid out, and the8would probably get in trouble. 9of all, Alan felt he would probably feel10about keeping the extra money. So Alan gave back the money.

同类题5

The Greens will take a plane to travel． (改为同义句)

The Greens will travel____ ____.

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