The chemical composition of a human cell includes proteins, fats and carbohydrates. Human food must contain these substances.

The chemical composition of a human cell includes proteins, fats and carbohydrates. Human food must contain these substances. Indicate which of them can transform into each other and which cannot

1. The human body can convert carbohydrates into fats and vice versa, as well as proteins into fats and carbohydrates.
2. Conversion of carbohydrates and fats into proteins is impossible

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