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Презентация на тему к уроку английского языка Фотосинтез в рамках проведения экологических уроков.

PHOTOSYNTHESIS
Широкова Оксана Григорьевна Г. МоскваГБОУ школа №480 PHOTOSYNTHESIS What is photosynthesis?Some animals eat plants to get energy. Other animals eat Food from the sun.   Photosynthesis uses energy from the sun The light and dark reactions.The first stage is called the light reaction, A bit of science!This chemical reaction involved in photosynthesis can be summarized A life-giving process.   Without photosynthesis our planet   could
Слайды презентации

Слайд 2 PHOTOSYNTHESIS

PHOTOSYNTHESIS

Слайд 3 What is photosynthesis?
Some animals eat plants to get

What is photosynthesis?Some animals eat plants to get energy. Other animals

energy. Other animals eat these animals to obtain the

energy they need. Plants produce their own food using energy from the sun. This process is called «photosynthesis».

Слайд 4 Food from the sun.
Photosynthesis uses

Food from the sun.  Photosynthesis uses energy from the sun

energy from the sun to change carbon dioxide and

water into carbohydrates. Carbohydrates are chemicals that contain hydrogen, carbon and oxygen and they are the plants’ food.

The plant absorbs carbon dioxide through tiny holes in it’s leaves and sucks up water from the soil through it’s roots. A green substance in the plants leaves called chlorophyll absorbs energy from the sun.


Слайд 5 The light and dark reactions.
The first stage is

The light and dark reactions.The first stage is called the light

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).

The second stage of the process is the dark reaction. The plant converts the carbon dioxide and water into carbohydrates. Carbohydrates provide the plant with the energy it needs in order to grow.

There are two stages to the photosynthesis process.


Слайд 6 A bit of science!
This chemical reaction involved in

A bit of science!This chemical reaction involved in photosynthesis can be

photosynthesis
can be summarized by these equations:
The equation shows

how important photosynthesis is for life. As well as providing food for the plant from the sun’s energy, the equation shows that the reaction also produces the oxygen that animals need to breathe.

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