Review: autotrophic can produce organic matter by itself, heterotrophic can only obtain organic matter through the outside world, and autotrophic is generally done through chloroplasts. Heterotrophication is mostly animal, and there is no chloroplast in the body. So autotrophic is much higher than heterotrophic.

Autotrophication is a kind of nutritional way to maintain life by using organic matter made by itself, which is called autotrophic, or refers to carbon dioxide or carbonate as the only carbon source and can be synthesized by simple inorganic nitrogen metabolism.

Autotrophic definition

Like green plants, using their own organic matter to maintain life is called autotrophic, which is an important feature of various green plants. Animals are almost autotrophic, and almost all plants are autotrophic.

Autonutrition, especially using carbon dioxide or carbonate as the only carbon source, can be synthesized by simple inorganic nitrogen metabolism-generally green plants, some chemoautotrophic bacteria and protoplasm, and normal metabolism does not need specific external factors.