Photosynthesis

Photosynthesis takes place in the plant's leaves.



The chemical formula of photosynthesis is:

6 CO2 + 6 H2O + sunlight C6H12O6 + 6 O2
carbon dioxide + water + sunlight  ➞ sugar + oxygen
The cells of tree leaves contain a large number of green chloroplasts (see the microscopic image below). These chloroplasts receive carbon dioxide from the air and water collected by the roots from the ground. 

Using the energy from sunlight, the plant uses carbon dioxide and water to produce sugar. This chemical reaction is known as photosynthesis.

In photosynthesis, the energy contained in sunlight is transmitted into sugar. The plant uses this sugar as its energy source. The plant uses the energy to fulfill its many functions, such as growth and reproduction. 

At the same time as the plant produces sugar, the reaction also releases oxygen into the air. This makes photosynthesis an important process for all living organisms. 

When we eat, we gain energy from the sugar plants have created in photosynthesis. At the same time, we breathe in oxygen that has been created during the same process. 

 
Chloroplasts in plant cells (microscopic image). The green chloroplasts are where photosynthesis takes place.