题干

有关酶和ATP的说法正确的是(  )

A:所有酶均在核糖体上合成

B:有机物氧化分解释放出的能量少部分转移到ATP中

C:检测蛋白酶的催化作用可用双缩脲试剂检验反应物是否完全分解

D:在ATP中A代表腺苷,P代表磷酸基团,T代表三个高能磷酸键

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答案(点此获取答案解析)

B

同类题4

从方框中选择适当的单词,并用其适当的形式完成短文,每词只能用一次,每空一词.

believe      with        call      nation       be      little        century      leaf       fine        drink

    Did you know that tea, the most popular drink in the world (after water), was invented by accident? Many people believe that tea was first drunk about5, 000 years ago. It is said that a Chinese ruler ____ Shen Nong first discovered tea as a drink. One day Shen Nong was boiling____ water over an open fire. Some ____from a tea plant fell into the water and remained there for some time. It produced a nice smell so he tasted the brown water. It was quite delicious. And so, one of the world's favorite drinks____ invented.

    A few thousand years later, Lu Yu, “the saint of tea”, mentioned Shen Nong in his book Cha Jing. The book describes how tea plants were grown and used to make tea. It also discusses where the____ tea leaves were produced and what kinds of water were used.

    It is____that tea was brought to Korea and Japan during the 6th and 7th____. In England, tea didn't appear until around 1660, but ____ than 100 years later, it had become the____ drink. The tea trade from China to Western countries took place in the 19th century. This helped to speed the popularity of tea and the tea plant to more places around the world. Even though many people now know about tea culture, the Chinese are____ doubt the ones who best understand the nature of tea.