题干

如图表示某植物非绿色器官在不同氧气浓度下氧气的吸收量和二氧化碳释放量的变化情况,根据所提供的信息,以下判断正确的是(     )

A:N点时,该器官氧气的吸收量和二氧化碳的释放量相等,说明其只进行有氧呼吸

B:M点是贮藏该器官的最适氧气浓度,此时无氧呼吸的强度最低

C:该器官呼吸作用过程中有非糖物质氧化分解

D:L点时,该器官产生二氧化碳的场所是细胞中的线粒体基质

上一题 下一题 0.0难度 选择题 更新时间:2016-10-26 03:01:34

答案(点此获取答案解析)

C

同类题3

阅读理解

    There are many different voices on charity donations recently. Chen TianQiao, one of the Chinese billionaires, gave away $115 million to the California Institute of Technology (Caltech) to help promote brain research. Chen has been interested in the brain research, believing it can advance the industries of artificial intelligence and virtual reality. However, this huge donation has caused heated discussions among Chinese scholars and internet users.

    Many criticized him for giving money to a foreign university rather than domestic institutes for brain research, which are developing fast and are catching up with the US in just a few years. RaoYi, a biologist at Peking University, even said the donation was a typical mistake.

    Others, however, support his choice. They believe Caltech is a more reasonable choice compared with Chinese research Institutes. Caltech has a long history and has taken a leading position in biology, and therefore it produces more efficient results. What's more, the results of the research will benefit not only the Americans, but also the rest of the world.

    A similar controversial (有争议的) case started two years ago when Pan ShiYi, chairman of SOHO China, donated $15 million to Harvard University to help disadvantaged Chinese Students.

    Many believe that China is still far behind in management and use of donated money, and that as a result, Chinese donators are looking abroad. In comparison, Western countries like the US, which have a long history of donating money, have well-developed systems that use money efficiently. They can also provide full access for donors who want to track the use of the money. To get more donations, Chinese universities should be braver and more honest. They need self-reflection rather than envy.