difference between autotrophic and heterotrophic nutrition ?

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Dr. Basant Ramawat

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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 whereas.... Heterotrophic...
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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 whereas.... Heterotrophic nutrition is nutrition obtained by digesting organic compounds. Animals, fungi, many prokaryotes and protoctists are unable to synthesize organic compounds to use as food. They are known as heterotrophs. Heterotrophic organisms have to acquire and take in all the organic substances they need to survive. read less
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In autotrophic nutrition, food is prepared from CO2, water and sunlight and generally available in daytime while in heterotrophic nutrition, food is obtained from other organisms all the time.
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Under autotrphic mode of nutrition the organism derives energy by using simple sugars and light where as in heterotrophic mode of nutrition, organism depends on readily available sugars for its requirement
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