what is photosynthesis

May 22, 2026

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Photosynthesis

Introduction

Photosynthesis is the process by which green plants prepare their own food with the help of sunlight. This process takes place in the leaves of plants containing chlorophyll.

Definition

Photosynthesis is the process in which green plants use sunlight, water, and carbon dioxide to prepare glucose and release oxygen.

Requirements for Photosynthesis

Sunlight
Chlorophyll
Water (HO)
Carbon Dioxide (CO)

Process

Plants absorb water through their roots.
Leaves take in carbon dioxide from the air.
Chlorophyll absorbs sunlight.
Using these substances, plants prepare food (glucose) and release oxygen into the atmosphere.

Chemical Equation

$6 C O_{2} + 6 H_{2} O \overset{Sunlight, Chlorophyll}{} C_{6} H_{12} O_{6} + 6 O_{2}$

Importance

It is the main source of food on Earth.
It maintains the oxygen balance in the atmosphere.
It provides energy for living organisms.
It helps maintain environmental balance.

Conclusion

Photosynthesis is an essential process for plants and all living organisms. Life on Earth would not be possible without it.

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