Номер 5, страница 76 - гдз по английскому языку 10 класс (spotlight) учебник Афанасьева, Дули

Module 4 - Earth Alert!. Across the curriculum - номер 5, страница 76.

Условие.

5 Project: Make notes under the headings in Ex. 3. Use them to explain how photosynthesis works.

PHOTOSYNTHESIS

A Energy moves along the food chain from one life form to another. Some animals eat plants to get energy. Other animals then eat these animals. Plants form the foundation of the food chain by producing their own food using energy from the sun, through a process called photosynthesis.

B Photosynthesis is very ancient. Before there were plants, tiny creatures called bacteria carried out photosynthesis. In fact, this was happening more than 3 billion years ago. That is a long time!

C Photosynthesis uses energy from the sun to change carbon dioxide (CO₂) and water (H₂O) into carbohydrates and oxygen gas. Carbohydrates are chemicals that contain hydrogen, carbon and oxygen. The chemical reaction can be summarised by this equation.

6 CO2	+	6 H2O	light	C6H12O6	+	6 O2
Carbon Dioxide		Water	→	Carbohydrate		Oxygen

D To start the process, the plant absorbs carbon dioxide through tiny holes in its leaves and sucks up water from the soil through its roots. A green substance in the plant's leaves called chlorophyll absorbs energy from the sun. The plant now has all it needs for photosynthesis to begin.

E There are two stages to the photosynthesis process. In the first stage, called the light reaction, light energy from the sun is converted into chemical energy. This energy is stored in a chemical called ATP (adenosine triphosphate).

F The second stage does not require sunlight to take place. This part of the process is called the “dark reaction”. In this stage the plant uses ATP to convert the carbon dioxide and water into carbohydrates. Carbohydrates provide the plant with the energy it needs in order to grow.

G Clearly, photosynthesis is very important for every living thing. As well as providing food for the plant from the sun’s energy, it indirectly provides food for every other living creature. Not only that, it also produces the oxygen that animals need to breathe. Without photosynthesis, our planet could not support life as we know it.

Решение 1.

Решение 2.

Решение 3.

Проект 5: Сделайте заметки под заголовками из Упр. 3. Используйте их, чтобы объяснить, как работает фотосинтез.

Ответ:

Photosynthesis is the process plants use to create their own food using energy from the sun. It is a very important process for all living things. Here is how it works:

1. Ingredients: To begin, the plant needs three things. It absorbs carbon dioxide (CO?) from the air through its leaves, sucks up water (H?O) from the soil through its roots, and absorbs energy from the sun using a green substance in the leaves called chlorophyll.

2. The Stages: The process happens in two stages.

The first stage is the light reaction. In this stage, light energy from the sun is converted into chemical energy and stored in a chemical called ATP.

The second stage is the dark reaction, which does not need sunlight. Here, the plant uses the stored ATP energy to convert carbon dioxide and water into carbohydrates.

3. The Result: The carbohydrates provide the plant with the energy it needs to grow. The process also produces oxygen, which is essential for animals to breathe. The overall chemical equation is: 6CO? + 6H?O + light > C?H??O? + 6O?.

---

Фотосинтез — это процесс, который растения используют для создания собственной пищи с помощью энергии солнца. Это очень важный процесс для всех живых существ. Вот как он работает:

1. Ингредиенты: Для начала растению нужны три вещи. Оно поглощает углекислый газ (CO?) из воздуха через листья, всасывает воду (H?O) из почвы через корни и поглощает энергию солнца с помощью зеленого вещества в листьях, называемого хлорофиллом.

2. Стадии: Процесс проходит в две стадии.

Первая стадия — это световая фаза. На этом этапе световая энергия солнца преобразуется в химическую энергию и запасается в химическом веществе под названием АТФ.

Вторая стадия — это темновая фаза, которой не нужен солнечный свет. Здесь растение использует запасенную энергию АТФ для преобразования углекислого газа и воды в углеводы.

3. Результат: Углеводы обеспечивают растение энергией, необходимой для роста. В процессе также вырабатывается кислород, который необходим животным для дыхания. Общее химическое уравнение выглядит так: 6CO? + 6H?O + свет > C?H??O? + 6O?.