Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
ukr2.doc
Скачиваний:
40
Добавлен:
16.11.2019
Размер:
2.64 Mб
Скачать

Antibiotics

Antibiotic is a chemical substance that inhibits the growth of other microorganisms, such as bacteria, fungi, or protozoans. The term originally referred to any agent with biological activity against living organisms. Now this term is used to refer to substances with anti-bacterial, anti-fungal, or anti-parasitical activity. The effectiveness of antibiotics varies with the location of the infection, the ability of the antibiotic to reach the site of infection, and the ability of the microbe to inactivate or excrete the antibiotic.

Although potent antibiotic compounds for treatment of human diseases caused by bacteria were not isolated and identified until the twentieth century, the first known use of antibiotics was by the ancient Chinese over 2,500 years ago. Many other ancient cultures, including the ancient Egyptians and ancient Greeks already used molds and plants to treat infections. At that time, however, the compounds having antibiotic activity and present in molds or plants were unknown.

The antibiotic properties of Penicillium were first described in France by Ernest Duchesne in 1897. However, his work went by without much notice from the scientific community until Alexander Fleming's discovery of Penicillin.

Antibiotics can be divided into two groups: bactericidal and bacteriostatic. Bactericidal antibiotics destroy bacteria, and bacteriostatic antibiotics prevent bacteria from multiplying. Antibiotics have been synthesized in the laboratory. They are used to treat serious bacterial infections such as pneumonia, tuberculosis, osteomyelitis, endocarditis and many others. Each antibiotic is effective only against certain bacteria. Antibiotics do not fight infections caused by viruses, such as cold, flu, bronchitis, and sore throat, unless caused by streptococci.

Usually, antibiotics are given by mouth, while intravenous antibiotics are used in more serious cases, such as deep-seated systemic infections. If the person has no other conditions that need treatment in the hospital and is feeling relatively well, intravenous antibiotics may be administered at home. Antibiotics may also sometimes be administered topically, as with eye drops or ointments.

Possible side effects are varied and can range from fever and nausea to major allergic reactions. One of the more common side effects is diarrhea. Some side effects may disrupt the function of the kidneys, liver, bone marrow, or other organs. Blood tests are used to monitor such adverse reactions.

Ex. 10. Translate the following words and word-combinations into English:

Коливатися|вагатися|; пліснява|пліснява|, пліснявий грибок; місцевий, топічний; визнавати; сильнодіючий; бактеріостатичний; бактерицидний; пригнічувати|придушувати|, стримувати; побічний ефект; належати до; руйнувати; глибоко розташований|; включати |ув'язнювати,замикати,поміщати|.

Ex. 11. Translate the text “Antibiotics” into Ukrainian.

Ex. 12. Insert the missing words:

1. Antibiotic is a chemical substance that _ the growth of other microorganisms. 2. The term is used to _ to substances with anti-bacterial, anti-fungal, or anti-parasitical activity. 3. Antibiotics can be divided into two groups: _ and bacteriostatic. 4. Bactericidal antibiotics destroy bacteria, and bacteriostatic antibiotics prevent _ from multiplying. 5. Antibiotics are used to _ serious bacterial infections. 6. Each antibiotic is _ only against certain bacteria. 7. Usually, antibiotics are given by mouth, while _ antibiotics are used in more serious cases. 8. Antibiotics may also sometimes be administered _, as with eye drops or ointments. 9. One of the more common side _ is diarrhea. 10. Some side effects may disrupt the function of the kidneys, liver, _, or other organs.

Ex. 13. Answer the following questions:

1. What is antibiotic? 2. What cases are antibiotics prescribed in? 3. How long are antibiotics used? 4. What groups are antibiotics divided into? 5. What are bactericidal antibiotics? 6. What are bacteriostatic antibiotics? 6. What side effect can antibiotic have? 7. What routs of antibiotics' administration are there?

Ex. 14. Insert the prepositions:

Since the first pioneering efforts of Florey and Chain _ 1939, the importance of antibiotics to medicine has led to much research into discovering and producing them. The process of production usually involves screening _ wide ranges of microorganisms, testing and modification. Production is carried out using fermentation; a process that is important _ anaerobic conditions when there is no oxidative phosphorylation to maintain the production of adenosine triphosphate (ATP) _ glycolysis.

Ex. 15. Write out key words of the text “Antibiotics”.

Ex. 16. Make up a plan of the text “Antibiotics”.

Ex. 17. Speak on the using of antibiotics.

Соседние файлы в предмете [НЕСОРТИРОВАННОЕ]