2020-04-12
1332
Macromolecule is a molecule with a high molecular weight. Its structure represents repeated repetitions of links.
Proteins are natural high-molecular nitrogen-containing compounds. They play a paramount role in all vital processes and are life carriers. Proteins are in all tissues of the organism- in blood, in bones.
Carbon, hydrogen, oxygen, nitrogen, and often sulfur, phosphorus, iron are parts of proteins. Proteins perform diverse functions in the body.
Fats make an essential part of our food. Meat, fish, dairy products, grain contain fats. It is one of the main components of cells and tissues of living organisms.
Carbohydrates are the chief suppliers of energy to the human body. Carbohydrates are products of vegetable and animal origin. Along with proteins and fats, they are the most important components of food of the person and animals.
Read the questions in A, choose and read the correct answers in B / Прочитайте вопросы в колонке А, выберите и прочитайте правильные ответы в колонке B
| A | B |
| 1 What is a macromolecule? | e) Carbon, hydrogen, oxygen, nitrogen, and often sulfur, phosphorus, iron are parts of proteins. |
| 2 What does its structure represent? | f) Meat, fish, dairy products, grain contain fats. |
| 3 What parts of proteins do you know? | g) Carbohydrates are the chief suppliers of energy to the human body. |
| 4What food contains fats? | h) A macromolecule is a molecule with a high molecular weight. |
| 5What is the role of carbohydrates? | e) Its structure represents repeated repetitions of links. |
We write / Мы пишем
Fill in the gap / Заполните пропуски используя слова в рамке
| tissues high-molecular vital |
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Proteins are natural … nitrogen-containing compounds. They play a paramount role in all … processes. Proteins contain in all … of the body, in blood, in bones.
Level B
Vocabulary
| represent - представлять repetition - повторение link - связь proteins - белки nitrogen-containing - азотосодержащие paramount - главный contain - содержать carbon - углерод hydrogen - водород sulfur –сера fibrous – фибриллярный enzyme – фермент cytokine – цитокины | reserve - запасной contractile – сократительный metabolism – обмен веществ diverse - разнообразный fats - жиры essential - важный dairy - молочный grain - зерно carbohydrates – углеводы oligosaccharides – олигосахариды fibrous – волокнистый cellulose - клетчатка supplier - поставщик origin -происхождение |
Reading
Read the text “Life macromolecules. Proteins, fats, carbohydrates” and do the exercises after it.
Life macromolecules. Proteins, fats, carbohydrates
Macromolecule is a molecule with a high molecular weight which structure represents repeated repetitions of links.
Proteins are natural high-molecular nitrogen-containing connections. They play a paramount role in all vital processes, are life carriers. Proteins are contained in all tissues of organisms, in blood, in bones. Carbon, hydrogen, oxygen, nitrogen, and often sulfur, phosphorus, iron are a part of proteins. Functions of proteins in an organism:
1. Structural function (fibrous proteins)
2. Catalytic function (enzymes)
3. Protective function (immunoglobulin)
4. Regulatory function (citokine)
5. Transport function (transport proteins)
6. Reserve function of proteins
7. Motor and contractile functions
8. Receptor function (cellular receptor)
9. Also proteins play an important role in metabolism
Fats make an essential part of our food. They are found in meat, fish, dairy products, grain. The value of these substances is expressed that they are the basic structural elements of any cellular membranes. Besides these substances are universal power sources. Without them the organism will not function correctly.
Carbohydrates are organic compounds which include carbon, hydrogen and also oxygen. In total there are several kinds of the carbohydrates presented by monosaccharides, oligosaccharides and also complex carbohydrates and fibrous carbohydrates which define as food cellulose. Carbohydrates are the chief suppliers of energy to a human body. Along with proteins and fats, they are the most important component of food of a person and animals.
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Say it in English:
1.высокомолекулярный вес 2.многократные повторения 3.азотосодержащие соединения 4.носители жизни 5.медь 6. Защитная функция 7.запасная 8.клеточный рецептор 9.обмен веществ 10.источник энергии 11.сложные углеводы 12.волокнистые углеводы 13.пищевая клетчатка.
In pairs, discuss the following questions:
10. What parts of proteins do you know?
11. What functions of proteins do you know?
12. Where do fats contain?
13. What is the role of carbohydrates?
14. What role do proteins play in metabolism?
15. What structure do carbohydrates have?
16. What elements are power sources?
17. Can you exist without proteins, fats and carbohydrates?
Fill in the missing modal verbs can, should or their equivalents if it necessary:
1. Proteins … perform protective function.
2. We will … to exist without proteins, fats and carbohydrates.
3. Proteins … catalyze one or several similar reactions.
4. We … break a structure of proteins on the general type into three groups.
5. You … eat too greasy food.
Speaking
Speak on the following functions of proteins, fats and carbohydrates:
1. Catalysis of various chemical reactions.
2. Giving of a form to cells.
3. Protection of an organism.
4. Transportation of small molecules.
5. Providing organism with energy.
Тема 8.2. Water and its role in human life / Вода и ее роль в жизни человека
Level A
We learn the new words / Мы учим слова
| including – включая exist - существовать percent - процент capable - способный vital -жизненный vitals – жизненно важные органы humidity - влажность absorbability - всасываемость thermal control – терморегуляция dissolve - растворять humidify – увлажнять assimilation - усвоение | create – создавать lubricant - смазка improve - улучшать waste - отходы to allow - допускать dehydration - обезвоживание struggle - бороться promote - способствовать display - проявление decrease – уменьшить cholesterol – холестерин discharge - выделять |
We read / Мы читаем
