The cell. Кулагина Ж.Д. - 36 стр.

                                         36
     2.    the presence of protein and nucleic acids;
     3.    the property of exchanging matter;
     4.    an indispensable condition of vital activity;
     5.    to be in a constant state of metabolic exchange;
     6.    metabolism is…;
     7.    a double process;
     8.    on the one hand…, on the other hand…;
     9.    to lead to the formation of…;
     10.   to lead to breaking down of…;
     11.   to serve a useful purpose…;
     12.   a source of energy.

      Ex. 10. Translate in English.

1. Некоторые животные не могут поддерживать температуру своего тела
постоянной. 2. Изменения в среде могут привести к изменению в структуре
и поводках животного. 3. Даже во время сна сердце, пищеварительная и
выводящая системы человека должны работать. 4. Все функции организма
должны быть взаимосвязаны. 5. Вам следует проверить результаты вашего
эксперимента еще раз. 6. Всем питательным веществам, поступающим в
клетку, приходится проходить через плазматическую мембрану. 7. Орга-
низмы можно классифицировать по-разному.

      Ex. 11. Analyze and translate the following sentences.

                                         A
      1. You must ask your fellow students if they know the day of the next
examination. 2. She asked me if my work would depend on the results of our
expedition. 3. If we use the fraction collector, we shall save a lot time. 4. I asked
him if he would be able to come in time. 5. If you can prove that your project
will save us considerable time we shall accept it.

                                         B
     1. If you boiled the air out of water and then put a gold fish in the water, it
would die. 2. If these facts had not been neglected, the discovery would have
been made long ago. 3. If the importance of this work had been recognized
before, far more progress would have been made. 4. If he had used only the
method of artificial selection, he would not have fulfilled his gigantic task. 5. If
you could bring all the equipment here, it would save time.

                                         C
      1. It is impossible that he could come. 2. I suggest that he should write a
letter at once. 3. I wish he were here with us. 4. Close the window lest you
should catch a cold. 5. She looked me over from head to foot as if I were a