I. Complete the statements:

1.Biochemistry is a discipline of

8. a) interpretation the physiological processes of living organisms in terms of atomic structure.

9. b) interpretation the molecular processes of living organisms.

10. c) interpretation the physiological processes of living organisms in terms of molecular structure.

2. Biochemists employ

a) the techniques and theories of physics to probe the molecular structure of substances.

b) the techniques and theories of chemistry to probe the molecular basis of life.

c) the techniques and theories of medicine to probe the cellar basis of life.

3. Enzymes are

a) biomolecules, which influence rapid rates of reaction of separation of two strands of DNA.

b) atoms, which influence formation of molecules.

c) molecules, which influence rapid rates of reaction of foundation of DNA.

4. Major areas of study in biochemistry are:

a) diseases and their reasons.

b) drugs and their structure.

c) mode of action and degradation of therapeutic agents.

5. The correction of genetic diseases may become possible by

a) cancer chemotherapy.

b) using sulfonamides, penicillins and tetracyclines.

c) replacement of defective genes with normal ones.

II. Complete the statements:

1. Biochemists have established the principles that underlie …

a) atom structure.

b) energy transfer in cells.

c) molecular processes in organisms.

2. Organism is investigated on the premise that its physiological processes are the consequence of …

a) thousands of chemical reactions.

b) thousands of physical processes.

c) molecular structure of organisms.

3. Rapid rates of reaction of separation of two strands of DNA are possible only through the action of …

a) molecules.

b) nucleic acid.

c) enzymes.

4. Enzymes are … that owe their remarkable rate-accelerating abilities to their three-dimensional chemical structure.

a) atoms

b) proteins

c) acid

5. Other diseases result from … in normal biochemical pathways.

a) connection

b) disruption c) influence

6. … can be treated with sulfonamides, penicillins and tetracyclines.

a) Cancer

b) Genetic diseases

c) Bacterial infections

7. The correction of … by replacement of defective genes with normal ones may become possible.

a) bacterial infections

b) genetic diseases

c) cancer

III. According to the text it can be said that :

(Tick the right statement – V)

1. Interpretation the physiological processes of living organisms in terms of molecular structure and reactivity gave rise to the discipline of biochemistry.

2. Biochemists employ the techniques and theories of mathematics to probe the molecular basis of life.

3. Physiological processes of living organism are not the consequence of many thousands of chemical reactions.

4. The study of biomolecules presents many difficulties.

5. The separation of two strands of DNA occurs in an hour.

6. Enzymes are atoms that owe their remarkable rate-accelerating abilities to their three-dimensional chemical structure.

7. Our health results from disruptions in normal biochemical pathways.

8. Mode of action and degradation of therapeutic agents is the major area of study in biochemistry.

9. Cancer can result when carcinogens react with DNA.

10. Chemistry has developed methods for rapidly and accurately determining the structure of proteins and DNA.

11. The correction of genetic diseases by replacement of defective genes with normal ones may not become possible.