What is meant by Autotropic mode of Nutrition?

Dear Flisha,

In autotrophic mode of nutrition ,organisms make their own food with the help of simple inorganic materials like carbon dioxide and water, in the presence of sunlight, by the process of photosynthesis. This results in the making of glucose.

The reaction of photosynthesis process is commonly written as:

      6CO2     +      6H2O     +      SunLight  ------>      C6H12O6        +    6O2

Carbon dioxide         Water       Chlorophyll             Carbohydrates      Oxygen

During the process of photosynthesis, six carbon dioxide molecules (reactant) and six water molecules (reactant), are converted into one sugar molecule (carbohydrate) (product) and six oxygen molecules (byproduct) in the presence of light energy (sunlight) captured by chlorophyll.

This Carbohydrate/ sugar produced is used by all the other animals as food.

Plants such as blue-green algae and cyanobacteria could be considered as some examples of autotrophic nutrition. The food produced by autotrophs is used by human beings and animals as well.


Simply Easy Learning

Updated on: 06-Apr-2023


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