Nitrogen is an important constituent of

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(A) Nitrogen is a fundamental element in the structure of amino acids,which are the building blocks of proteins. Every amino acid contains an amino gr

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Proteins

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(A) Nitrogen is a fundamental element in the structure of amino acids,which are the building blocks of proteins. Every amino acid contains an amino group $(-NH_2)$ and a carboxyl group $(-COOH)$. Since proteins are polymers of amino acids,nitrogen is an essential component of all proteins. Lipids and carbohydrates primarily consist of carbon,hydrogen,and oxygen,and do not contain nitrogen as a structural constituent.

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