what is photosynthesis equation?

photosynthesis equation
photosynthesis. Image by Andrea ☕😘 from Pixabay

Photosynthesis Equation: The Chemical Process of Life

Photosynthesis is a process used by plants, algae, and some bacteria to convert light energy into chemical energy in the form of organic compounds. The chemical equation for photosynthesis is:

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

This equation means that six molecules of carbon dioxide (CO2) and six molecules of water (H2O) are combined in the presence of light energy to produce one molecule of glucose (C6H12O6) and six molecules of oxygen (O2).

The Reactants of Photosynthesis

The reactants of photosynthesis are:

  • Carbon dioxide (CO2): CO2 is a gas that is found in the atmosphere. It is released into the atmosphere by plants and animals when they breathe, and by volcanoes.
  • Water (H2O): H2O is a liquid that is found in the oceans, lakes, rivers, and groundwater. It is also found in the air as water vapor.

The Products of Photosynthesis

The products of photosynthesis are:

  • Glucose (C6H12O6): Glucose is a sugar that is used by plants and animals for energy.
  • Oxygen (O2): O2 is a gas that is essential for respiration.

The Role of Light Energy in Photosynthesis

Light energy is the driving force behind photosynthesis. Plants capture light energy with pigments called chlorophylls. These chlorophylls are found in the chloroplasts, which are organelles in plant cells.

The light energy is used to split water molecules into hydrogen atoms and oxygen atoms. The hydrogen atoms are then used to combine with CO2 to produce glucose. The oxygen atoms are released into the atmosphere as a waste product.

The Importance of Photosynthesis

Photosynthesis is essential for life on Earth. Plants are the primary producers of food, and they produce the oxygen that we breathe. Photosynthesis also helps to regulate the climate by removing CO2 from the atmosphere.

In addition to its role in food production and climate regulation, photosynthesis also has a number of other benefits. For example, photosynthesis produces the organic compounds that are used to make medicines, cosmetics, and other products.


Photosynthesis is a complex process that is essential for life on Earth. It is a process that we should all appreciate for its many benefits.

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