问题 问答题 简答题

举例说明蛋白质的结构与其功能之间的关系。

答案

参考答案:

蛋白质的生物学功能从根本上来说取决于它的一级结构。蛋白质的生物学功能是蛋白质分子的天然构象所具有的属性或所表现的性质。一级结构相同的蛋白质,其功能也相同,二者之间有统一性和相适应性。

阅读理解

根据短文内容,  补全所缺的信息。(每空不超过三个词)

  This spring, the H1N1 virus (病毒) has been all over the news. The virus

spread (传播) from Mexico and people in the United States also got sick. The

virus has spread all around the world. It can make people very sick, and can

spread easily from one person to another. Some people have died from it. Most

people got better after having a fever and sore throat. Most people want to know:

Should I worry about the H1N1 flu virus or not? Medical scientists say instead of

worrying, wash your hands! Worry won’t keep you from getting the H1N1, but

washing your hands often can keep you healthy. A virus is a germ (细菌) and

germs are too small to be seen. Keeping your hands clean -and following other

good hygiene (卫生) habits like not sharing drinks and keeping your fingers out

of your mouth -can keep the germs on the outside. If you want to travel to Mexico

or other countries, pack a travel health case. The case should include a number of

basic medicines inside. Another way to stop the spread of the flu is for sick

people to stay home from school or work. Anyone who thinks he or she might

have the H1N1 virus should see a doctor as soon as possible. If someone has the

H1N1 virus, medicine can help the person get better.

Information about the H1N1 flu virus

How to deal with the H1N1 flu virus

●The H1N1 flu virus first appeared in Mexico. It can 1. _____ from one person

to another.

●Some people have died from it, but most people 2. _____ after having a fever

and sore throat.

●3. _____ instead of worrying.

●Keeping your hands clean can keep germs 4. _____.

●Pack a travel health case that should include a number of 5. _____.

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