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what element present in protein is not present in carbohydrate or fat? a) carbon b) hydrogen c) oxygen d) nitrogen

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Answer:

The element that is present in proteins but not in carbohydrates or fats is d) nitrogen.

Step-by-step explanation:

Proteins are the only macromolecules among proteins, carbohydrates, and fats that contain nitrogen atoms. Nitrogen is a crucial component of amino acids, the building blocks of proteins, whereas carbohydrates and fats primarily consist of carbon, hydrogen, and oxygen atoms.

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