What are the similarities and differences between autotrophic nutrition in photo- and chemosynthetic bacteria?

1) Similarity: as a result of phototrophic and chemotrophic nutrition, a carbohydrate is formed – glucose.
2) Both processes come with energy.
3) The difference: phototrophic bacteria use light energy for glucose synthesis, and chemotrophic bacteria use the oxidation energy of inorganic substances.

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