what is called autotrophic nutrition
Answers
Autotrophic nutrition means that simple inorganic substances are taken in and used to synthesise organic molecules. Energy is needed to achieve this. In photo-autotrophic nutrition light is the energy source. In most instances the light source is solar energy, the process being photosynthesis.
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Autotrophic nutrition is the capacity of certain organisms to synthesize all the essential substances for their metabolism from inorganic substances, so that for their nutrition they do not need other living beings.
They are called autotrophs because they generate their own food, through inorganic substances for their metabolism. Autotrophic organisms produce their cell mass and organic matter from carbon dioxide, which is inorganic, as the sole source of carbon, using light or chemicals as an energy source.
Autotrophic beings can be classified as photosynthetic and chemosynthetic:
- Plants and other organisms that use photosynthesis are called photolytoautotrophs.
-Bacteria that use the oxidation of inorganic compounds, such as sulphur dioxide or ferrous compounds, to produce energy are called chemolithotrophs.
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