6. Refute and correct the following false statements

Example: The cell is the largest unit of living matter.

The cell isn’t the largest unit of living matter, it’s the smallest unit of living matter.

1. The main function of the cell is to reproduce itself. 2. Organelles can be seen with the naked eye. 3. Mitotic division takes place in two stages. 4. The body contains scores of different types of protein. 5. The spindle and aster are formed during telophase. 6. Each gene governs the synthesis of hundreds of proteins. 7. Nucleic acids are rather unimportant substances. 8. In the course of mitosis metaphase comes after telophase.

III. Word study

7. Write the plural form of the following nouns

meiosis –

mitosis –

synthesis –

nucleolus –

ovum –

reticulum –

8. Form the adjectives, using one of the suffixes: -al, -tic, -ar, -ic

environment –

gene –

granule –

microscope –

mitosis –

reticulum –

acid –

synthesis –

9. Form the nouns using one of the suffixes: -ation, -ance, -ment

align –

appear –

envelop –

govern –

depend –

observe –

preserve –

separate –

10. Make English-Russian pairs of words

living matter, independent life, suitable environment, neighbouring cell, semipermeable container, complex structure, vital function, chemical composition, outstanding quality, paired structure.

подходящая среда, химический состав, выдающееся свойство, живая материя, полупроницаемая оболочка, сложное строение, соседняя клетка, жизненноважная функция, парная структура, самостоятельная жизнь

11. Fill in the blanks with the proper prepositions

a) 1. Cytoplasm is bounded ___ the cell membrane. 2. Voluntary muscles are responsible ___ the extension and bending of the extremities. 3. Diaphragm separates thoracic cavity ___ the abdominal cavity. 4. Bones are composed ___ hard osseous tissue. 5. Slow and mechanical movements in the walls of the digestive tract are determined ___ involuntary muscles. 6. DNA is organized ___ paired structures. 7. Chromosomes are split ___ paired chromatids. 8. Prophase is followed ___ metaphase. 9. Cardiac muscle is marked ___ rhythmic contractions. 10. One member of a pair of chromosomes goes ___ a germ cell.

b) 1. The cell is capable ___ independent life. 2. The cell reveals its structure ___ a high-power microscope. 3. ___ mitochondria combustion of nutrients provides energy to keep the cell alive. 4. Proteins are the major factor ___ determining the biological properties of the cell. 5. DNA produces its exact copy ___ splitting ___ two halves.

12. Translate the italicized words and group of words

a) 1. Golgi apparatus is responsible for the elaboration and secretion of the cell products. 2. In anaphase the mitotic process reaches the point when chromosome halves move towards the pole of the spindle. 3. The cell is a minute mass of cytoplasm. 4. The nucleus is separated from the cytoplasm by the nuclear envelope. 5. The chemical composition of nucleoprotein determines what proteins the cell can produce. 6. The cell is a complex structure. 7. Nucleus is a dense kernel which directs the activity of the cell.

b) 1. The initial part of mitosis is prophase. 2. Each of the genes governs the synthesis of one protein. 3. Biological properties of the cell as a whole are determined by the proteins the cell produces. 4. Combustion of nutrients takes place in mitochondria. 5. The final stage of cell division is telophase.